prompt_front: Answer the question based on the given passages. Only give me the answer and do not output any other words.

Question: Gary L. Bennett was a part of the space missions that have a primary destination of what celestial body?

The following are given passages.
Context 1: Passage 1:
Gary L  Bennett
Gary L  Bennett (born January 17, 1940) is an American scientist and engineer, specializing in aerospace and energy   He has worked for NASA and the US Department of Energy (DOE) on advanced space power systems and advanced space propulsion systems   His professional career has included work on the Voyager, Galileo, and Ulysses space missions, and is currently working as a consultant in aerospace power and propulsion systems  He is also a science fiction author (The Star Sailors) 

Biography
Bennett was born in Twin Falls, Idaho  He joined the NASA headquarters in June 1988 as the Manager of Advanced Space Power Systems in the transportation division of the Office of Advanced Concepts and Technology  There, he managed a number of transportation technology programs including hybrid propulsion, electric propulsion, low-thrust chemical propulsion, and other advanced propulsion concepts (e g , fusion, antimatter)  He was also the first program manager of the advanced technology insertion program for the Pluto Fast Flyby (now New Horizons) mission and the TIMED space physics mission 
Prior to coming to NASA, Bennett held key positions in DoE's space radioisotope power program, including serving as Director of Safety and Nuclear Operations for the radioisotope power sources that were used on the Galileo mission to Jupiter and that are being used on the Ulysses mission to explore the polar regions of the Sun   This same radioisotope power source design was then flown on the Cassini mission to Saturn and on the New Horizons mission to Jupiter 
Previous positions included Chief of the Research Support Branch in the US Nuclear Regulatory Commission (NRC) where Bennett was instrumental in creating and managing NRC's reactor operational safety research program 
Bennett was the flight safety manager for the radioisotope power sources currently in use on the Voyager 1 and Voyager 2 spacecraft (which went to Jupiter, Saturn, Uranus, Neptune and beyond) and on Lincoln Laboratory's LES 8 and LES 9 communications satellites 
Bennett also worked as a physicist in the NERVA (Nuclear Engine for Rocket Vehicle Applications) program at what was then NASA's Lewis Research Center (now the John H  Glenn Research Center) in Cleveland, Ohio   He did fundamental reactor safety research at what is now the Department of Energy's Idaho National Laboratory (INL) 
From 1980 to 1988, he was a member of or adviser to US delegations to the two subcommittees of the United Nations Committee on the Peaceful Uses of Outer Space and he prepared the official US position papers on the use of nuclear power sources in outer space 
From 1988 to 1990, Bennett chaired the Steering Group of the Interagency Advanced Power Group (IAPG), the national coordinating group for federally sponsored space and terrestrial power research   During his tenure and under his initiative the IAPG saw its greatest increase in membership 
Bennett received his PhD in physics from Washington State University in 1970; a Master of Nuclear Science degree in 1966, and a BSc degree in physics from the University of Idaho in 1962; and an Associate of Arts degree from Boise Junior College (now Boise State University) in 1960 
Since 1995, he has been active in promoting the teaching of science (specifically evolution) and received the Friend of Darwin Award  Bennett has also been a champion of the First Amendment and was elected to the National Advisory Council of Americans United for Separation of Church and State 

Selected works
Bennett has authored or coauthored over 160 technical papers, reports and articles on power, propulsion, and space missions 
Science fiction

G L  Bennett (1980)  The Star Sailors  ISBN 978-0-312-75582-9 Chapters in:

M S  El-Genk (1997)  A Critical Review of Space Nuclear Power and Propulsion, 1984-1993  ISBN 978-1-56396-317-9 
D M  Rowe (1995)  CRC Handbook of Thermoelectrics  ISBN 978-0-8493-0146-9 
R A  Meyers (2001)  Encyclopedia of Physical Science and Technology (3rd ed )  ISBN 978-0-12-227410-7 

Awards
In 2000, he received the Friend of Darwin Award by the National Center for Science Education
In 1996, he received the Schreiber-Spence Space Achievement Award for his leadership of the safety and nuclear operations for the Galileo and Ulysses radioisotope power source programs 
In 1995, he shared in the American Institute of Aeronautics and Astronautics (AIAA) Aerospace Power Systems Award and Medal for his leadership of the Ulysses radioisotope power source program 
In 1994, he received the Silver & Gold Award from the University of Idaho Alumni Association
In 1990, he received the Distinguished Alumnus Award from Boise State University

Associations
American Institute of Aeronautics and Astronautics (fellow)
American Physical Society (fellow)
British Interplanetary Society (fellow)
Passage 2:
Planetary protection
Planetary protection is a guiding principle in the design of an interplanetary mission, aiming to prevent biological contamination of both the target celestial body and the Earth in the case of sample-return missions  Planetary protection reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail There are two types of interplanetary contamination  Forward contamination is the transfer of viable organisms from Earth to another celestial body   Back contamination is the transfer of extraterrestrial organisms, if they exist, back to the Earth's biosphere 

History
The potential problem of lunar and planetary contamination was first raised at the International Astronautical Federation VIIth Congress in Rome in 1956 In 1958 the U S  National Academy of Sciences (NAS) passed a resolution stating, “The National Academy of Sciences of the United States of America urges that scientists plan lunar and planetary studies with great care and deep concern so that initial operations do not compromise and make impossible forever after critical scientific experiments ” This led to creation of the ad hoc Committee on Contamination by Extraterrestrial Exploration (CETEX), which met for a year and recommended that interplanetary spacecraft be sterilized, and stated, “The need for sterilization is only temporary  Mars and possibly Venus need to remain uncontaminated only until study by manned ships becomes possible” In 1959, planetary protection was transferred to the newly formed Committee on Space Research (COSPAR)  COSPAR in 1964 issued Resolution 26 affirming that:

the search for extraterrestrial life is an important objective of space research, that the planet of Mars may offer the only feasible opportunity to conduct this search during the foreseeable future, that contamination of this planet would make such a search far more difficult and possibly even prevent for all time an unequivocal result, that all practical steps should be taken to ensure that Mars be not biologically contaminated until such time as this search has been satisfactorily carried out, and that cooperation in proper scheduling of experiments and use of adequate spacecraft sterilization techniques is required on the part of all deep space probe launching authorities to avoid such contamination 
In 1967, the US, USSR, and UK ratified the United Nations Outer Space Treaty   The legal basis for planetary protection lies in Article IX of this treaty:
"Article IX:     States Parties to the Treaty shall pursue studies of outer space, including the Moon and other celestial bodies, and conduct exploration of them so as to avoid their harmful contamination and also adverse changes in the environment of the Earth resulting from the introduction of extraterrestrial matter and, where necessary, shall adopt appropriate measures for this purpose    
This treaty has since been signed and ratified by 104 nation-states  Another 24 have signed but not ratified   All the current space-faring nation-states, along with all current aspiring space-faring nation-states, have both signed and ratified the treaty The Outer Space Treaty has consistent and widespread international support, and as a result of this, together with the fact that it is based on the 1963 declaration which was adopted by consensus in the UN National Assembly, it has taken on the status of customary international law  The provisions of the Outer Space Treaty are therefore binding on all states, even those who have neither signed nor ratified it For forward contamination, the phrase to be interpreted is "harmful contamination"   Two legal reviews came to differing interpretations of this clause (both reviews were unofficial)  However the currently accepted interpretation is that “any contamination which would result in harm to a state’s experiments or programs is to be avoided”  NASA policy states explicitly that “the conduct of scientific investigations of possible extraterrestrial life forms, precursors, and remnants must not be jeopardized” 

COSPAR recommendations and categories
The Committee on Space Research (COSPAR) meets every two years, in a gathering of 2000 to 3000 scientists, and one of its tasks is to develop recommendations for avoiding interplanetary contamination  Its legal basis is Article IX of the Outer Space Treaty  (see history below for details) 
Its recommendations depend on the type of space mission and the celestial body explored   COSPAR categorizes the missions into 5 groups:

Category I: Any mission to locations not of direct interest for chemical evolution or the origin of life, such as the  Sun or Mercury  No planetary protection requirements 
Category II: Any mission to locations of significant interest for chemical evolution and the origin of life, but only a remote chance that spacecraft-borne contamination could compromise investigations  Examples include the Moon, Venus, and comets  Requires simple documentation only, primarily to outline intended or potential impact targets, and an end of mission report of any inadvertent impact site if such occurred 
Category III: Flyby and orbiter missions to locations of significant interest for chemical evolution or the origin of life, and with a significant chance that contamination could compromise investigations e g , Mars, Europa, Enceladus  Requires more involved documentation than Category II  Other requirements, depending on the mission, may include trajectory biasing, clean room assembly, bioburden reduction, and if impact is a possibility, inventory of organics 
Category IV: Lander or probe missions to the same locations as Category III  Measures to be applied depend on the target body and the planned operations  "Sterilization of the entire spacecraft may be required for landers and rovers with life-detection experiments, and for those landing in or moving to a region where terrestrial microorganisms may survive and grow, or where indigenous life may be present  For other landers and rovers, the requirements would be for decontamination and partial sterilization of the landed hardware "Missions to Mars in category IV are subclassified further:Category IVa  Landers that do not search for Martian life - uses the Viking lander pre-sterilization requirements, a maximum of 300,000 spores per spacecraft and 300 spores per square meter 
Category IVb  Landers that search for Martian life   Adds stringent extra requirements to prevent contamination of samples 
Category IVc  Any component that accesses a Martian special region (see below) must be sterilized to at least to the Viking post-sterilization biological burden levels of 30 spores total per spacecraft Category V: This is further divided into unrestricted and restricted sample return Unrestricted Category V: samples from locations judged by scientific opinion to have no indigenous lifeforms  No special requirements 
Restricted Category V: (where scientific opinion is unsure) the requirements include: absolute prohibition of destructive impact upon return, containment of all returned hardware which directly contacted the target body, and containment of any unsterilized sample returned to Earth For Category IV missions, a certain level of biological burden is allowed for the mission  In general this is expressed as a 'probability of contamination', required to be less than one chance in 10,000 of forward contamination per mission, but in the case of Mars Category IV missions (above) the requirement has been translated into a count of Bacillus spores per surface area, as an easy to use assay method More extensive documentation is also required for Category IV  Other procedures required, depending on the mission, may include trajectory biasing, the use of clean rooms during spacecraft assembly and testing, bioload reduction, partial sterilization of the hardware having direct contact with the target body, a bioshield for that hardware, and, in rare cases, complete sterilization of the entire spacecraft For restricted Category V missions, the current recommendation is that no uncontained samples should be returned unless sterilized  Since sterilization of the returned samples would destroy much of their science value, current proposals involve containment and quarantine procedures  For details, see Containment and quarantine below  Category V missions also have to fulfill the requirements of Category IV to protect the target body from forward contamination 

Mars special regions
A special region is a region classified by COSPAR where terrestrial organisms could readily propagate, or thought to have a high potential for existence of Martian life forms  This is understood to apply to any region on Mars where liquid water occurs, or can occasionally occur, based on the current understanding of requirements for life 
If a hard landing risks biological contamination of a special region, then the whole lander system must be sterilized to COSPAR category IVc 

Target categories
Some targets are easily categorized  Others are assigned provisional categories by COSPAR, pending future discoveries and research 
The 2009 COSPAR Workshop on Planetary Protection for Outer Planet Satellites and Small Solar System Bodies covered this in some detail  Most of these assessments are from that report, with some future refinements  This workshop also gave more precise definitions for some of the categories:

Category I
“not of direct interest for understanding the process of chemical evolution or the origin of life ” 
Io, Sun, Mercury, undifferentiated metamorphosed asteroids

Category II
… where there is only a remote chance that contamination carried by a spacecraft could jeopardize future exploration”  In this case we define “remote chance” as “the absence of niches (places where terrestrial microorganisms could proliferate) and/or a very low likelihood of transfer to those places ” 
Callisto, comets, asteroids of category P, D, and C, Venus, Kuiper belt objects (KBO) < 1/2 size of Pluto 

Provisional Category II
Ganymede, Titan, Triton, the Pluto–Charon system, and other large KBOs (> 1/2 size of Pluto), CeresProvisionally, they assigned these objects to Category II  However, they state that more research is needed, because there is a remote possibility that the tidal interactions of Pluto and Charon could maintain some water reservoir below the surface  Similar considerations apply to the other larger KBOs 
Triton is insufficiently well understood at present to say it is definitely devoid of liquid water  The only close up observations to date are those of Voyager 2 
In a detailed discussion of Titan, scientists concluded that there was no danger of contamination of its surface, except short term adding of negligible amounts of organics, but Titan could have a below surface water reservoir that communicates with the surface, and if so, this could be contaminated 
In the case of Ganymede, the question is, given that its surface shows pervasive signs of resurfacing, is there any communication with its subsurface ocean? They found no known mechanism by which this could happen, and the Galileo spacecraft found no evidence of cryovolcanism  Initially, they assigned it as Priority B minus, meaning that precursor missions are needed to assess its category before any surface missions  However, after further discussion they provisionally assigned it to Category II, so no precursor missions are required, depending on future research 
If there is cryovolcanism on Ganymede or Titan, the undersurface reservoir is thought to be 50 – 150 km below the surface  They were unable to find a process that could transfer the surface melted water back down through 50 km of ice to the under surface sea  This is why both Ganymede and Titan were assigned a reasonably firm provisional Category II, but pending results of future research 
Icy bodies that show signs of recent resurfacing need further discussion and might need to be assigned to a new category depending on future research  This approach has been applied, for instance, to missions to Ceres  The planetary protection Category is subject for review during the mission of the Ceres orbiter (Dawn) depending on the results found 

Category III / IV
“…where there is a significant chance that contamination carried by a spacecraft could jeopardize future exploration ” We define “significant chance” as “the presence of niches (places where terrestrial microorganisms could proliferate) and the likelihood of transfer to those places ” 
Mars because of possible subsurface habitats 
Europa because of its subsurface ocean 
Enceladus because of evidence of water plumes 

Category V
Unrestricted Category V: “Earth-return missions from bodies deemed by scientific opinion to have no indigenous life forms ”
Restricted Category V: "Earth-return missions from bodies deemed by scientific opinion to be of significant interest to the process of chemical evolution or the origin of life "
In the category V for sample return the conclusions so far are:
Unrestricted Category V: Venus, the Moon 
Restricted Category V: Mars, Europa, Enceladus 

The Coleman–Sagan equation
The aim of the current regulations is to keep the number of microorganisms low enough so that the probability of contamination of Mars (and other targets) is acceptable  It is not an objective to make the probability of contamination zero 
The aim is to keep the probability of contamination of 1 chance in 10,000 of contamination per mission flown  This figure is obtained typically by multiplying together the number of microorganisms on the spacecraft, the probability of growth on the target body, and a series of bioload reduction factors 
In detail the method used is the Coleman–Sagan equation 
  
    
      
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    P_{c}=N_{0}RP_{S}P_{t}P_{R}P_{g}
   
where 

  
    
      N
      
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    N_{0}
   = the number of microorganisms on the spacecraft initially

  
    R
    R
   = Reduction due to conditions on spacecraft before and after launch

  
    
      P
      
        S
      
    
    P_{S}
   = Probability that microorganisms on the spacecraft reach the surface of the planet

  
    
      P
      
        t
      
    
    P_{t}
   = Probability that spacecraft will hit the planet - this is 1 for a lander

  
    
      P
      
        R
      
    
    P_{R}
   = Probability of microorganism to be released in the environment when on the ground, usually set to 1 for crashlanding 

  
    
      P
      
        g
      
    
    P_{g}
   = Probability of growth  For targets with liquid water this is set to 1 for sake of the calculation Then the requirement is 
  
    
      
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    P_{c}<10^{-4}
  
The 
  
    
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    10^{-4}
   is a number chosen by Sagan et al , somewhat arbitrarily  Sagan and Coleman assumed that about 60 missions to the Mars surface would occur before the exobiology of Mars is thoroughly understood, 54 of those successful, and 30 flybys or orbiters, and the number was chosen to endure a probability to keep the planet free from contamination of at least 99 9% over the duration of the exploration period 

Critiques
The Coleman–Sagan equation has been criticised because the individual parameters are often not known to better than a magnitude or so  For example, the thickness of the surface ice of Europa is unknown, and may be thin in places, which can give rise to a high level of uncertainty in the equation  It has also been criticised because of the inherent assumption made of an end to the protection period and future human exploration  In the case of Europa, this would only protect it with reasonable probability for the duration of the period of exploration Greenberg has suggested an alternative, to use the natural contamination standard — that our missions to Europa should not have a higher chance of contaminating it than the chance of contamination by meteorites from Earth 
As long as the probability of people infecting other planets with terrestrial microbes is substantially smaller than the probability that such contamination happens naturally, exploration activities would, in our view, be doing no harm  We call this concept the natural contamination standard 
Another approach for Europa is the use of binary decision trees which is favoured by the Committee on Planetary Protection Standards for Icy Bodies in the Outer Solar System under the auspices of the Space Studies Board  This goes through a series of seven steps, leading to a final decision on whether to go ahead with the mission or not 
Recommendation: Approaches to achieving planetary protection should not rely on the multiplication of bioload estimates and probabilities to calculate the likelihood of contaminating Solar System bodies with terrestrial organisms unless scientific data unequivocally define the values, statistical variation, and mutual independence of every factor used in the equation Recommendation: Approaches to achieving planetary protection for missions to icy Solar System bodies should employ a series of binary decisions that consider one factor at a time to determine the appropriate level of planetary protection procedures to use 

Containment and quarantine for restricted Category V sample return
In the case of restricted Category V missions, Earth would be protected through quarantine of sample and astronauts in a yet to be built Biosafety level 4 facility  In the case of a Mars sample return, missions would be designed so that no part of the capsule that encounters the Mars surface is exposed to the Earth environment  One way to do that is to enclose the sample container within a larger outer container from Earth, in the vacuum of space  The integrity of any seals is essential and the system must also be monitored to check for the possibility of micro-meteorite damage during return to Earth The recommendation of the ESF report is that
“No uncontained Mars materials, including space craft surfaces that have been exposed to the Mars environment should be returned to Earth unless sterilised"   "For unsterilised samples returned to Earth, a programme of life detection and biohazard testing, or a proven sterilisation process, shall be undertaken as an absolute precondition for the controlled distribution of any portion of the sample ”
No restricted category V returns have been carried out  During the Apollo program, the sample-returns were regulated through the Extra-Terrestrial Exposure Law  This was rescinded in 1991, so new regulations would need to be enacted  The Apollo era quarantine procedures are of interest as the only attempt to date of a return to Earth of a sample that, at the time, was thought to have a remote possibility of including extraterrestrial life 
Samples and astronauts were quarantined in the Lunar Receiving Laboratory  The methods used would be considered inadequate for containment by modern standards  Also the lunar receiving laboratory would be judged a failure by its own design criteria as the sample return didn't contain the lunar material, with two failure points during the Apollo 11 return mission, at the splashdown and at the facility itself 
However the Lunar Receiving Laboratory was built quickly with only two years from start to finish, a time period now considered inadequate  Lessons learned from it can help with design of any Mars sample return receiving facility Design criteria for a proposed Mars Sample Return Facility, and for the return mission, have been developed by the American National Research Council, and the European Space Foundation  They concluded that it could be based on biohazard 4 containment but with more stringent requirements to contain unknown microorganisms possibly as small as or smaller than the smallest Earth microorganisms known, the ultramicrobacteria  The ESF study also recommended that it should be designed to contain the smaller gene transfer agents if possible, as these could potentially transfer DNA from martian microorganisms to terrestrial microorganisms if they have a shared evolutionary ancestry  It also needs to double as a clean room facility to protect the samples from terrestrial contamination that could confuse the sensitive life detection tests that would be used on the samples 
Before a sample return, new quarantine laws would be required  Environmental assessment would also be required, and various other domestic and international laws not present during the Apollo era would need to be negotiated 

Decontamination procedures
For all spacecraft missions requiring decontamination, the starting point is clean room assembly in US federal standard class 100 cleanrooms  These are rooms with fewer than 100 particles of size 0 5 µm or larger per cubic foot  Engineers wear cleanroom suits with only their eyes exposed  Components are sterilized individually before assembly, as far as possible, and they clean surfaces frequently with alcohol wipes during assembly  Spores of Bacillus subtilis was chosen for not only its ability to readily generate spores, but its well-established use as a model species  It is a useful tracker of UV irradiation effects because of its high resilience to a variety of extreme conditions  As such it is an important indicator species for forward contamination in the context of planetary protection 
For Category IVa missions (Mars landers that do not search for Martian life), the aim is to reduce the bioburden to 300,000 bacterial spores on any surface from which the spores could get into the Martian environment  Any heat tolerant components are heat sterilized to 114 °C  Sensitive electronics such as the core box of the rover including the computer, are sealed and vented through high-efficiency filters to keep any microbes inside For more sensitive missions such as Category IVc (to Mars special regions), a far higher level of sterilization is required  These need to be similar to levels implemented on the Viking landers, which were sterilized for a surface which, at the time, was thought to be potentially hospitable to life similar to special regions on Mars today 
In microbiology, it is usually impossible to prove that there are no microorganisms left viable, since many microorganisms are either not yet studied, or not cultivable  Instead, sterilization is done using a series of tenfold reductions of the numbers of microorganisms present  After a sufficient number of tenfold reductions, the chance that there any microorganisms left will be extremely low The two Viking Mars landers were sterilized using dry heat sterilization   After preliminary cleaning to reduce the bioburden to levels similar to present day Category IVa spacecraft, the Viking spacecraft were heat-treated for 30 hours at 112 °C, nominal 125 °C (five hours at 112 °C was considered enough to reduce the population tenfold even for enclosed parts of the spacecraft, so this was enough for a million-fold reduction of the originally low population) Modern materials however are often not designed to handle such temperatures, especially since modern spacecraft often use "commercial off the shelf" components  Problems encountered include nanoscale features only a few atoms thick, plastic packaging, and conductive epoxy attachment methods  Also many instrument sensors cannot be exposed to high temperature, and high temperature can interfere with critical alignments of instruments As a result, new methods are needed to sterilize a modern spacecraft to the higher categories such as Category IVc for Mars, similar to Viking  Methods under evaluation, or already approved, include:

Vapour phase hydrogen peroxide - effective, but can affect finishes, lubricants and materials that use aromatic rings and sulfur bonds  This has been established, reviewed, and a NASA/ESA specification for use of VHP has been approved by the Planetary Protection Officer, but it has not yet been formally published 
Ethylene oxide - this is widely used in the medical industry, and can be used for materials not compatible with hydrogen peroxide  It is under consideration for missions such as ExoMars 
Gamma radiation and electron beams have been suggested as a method of sterilization, as they are used extensively in the medical industry  They need to be tested for compatibility with spacecraft materials and hardware geometries, and are not yet ready for review Some other methods are of interest as they can sterilize the spacecraft after arrival on the planet 
Supercritical carbon dioxide snow (Mars) - is most effective against traces of organic compounds rather than whole microorganisms  Has the advantage though that it eliminates the organic traces - while other methods kill the microorganisms, they leave organic traces that can confuse life detection instruments  Is under study by JPL and ESA 
Passive sterilization through UV radiation (Mars)  Highly effective against many microorganisms, but not all, as a Bacillus strain found in spacecraft assembly facilities is particularly resistant to UV radiation  Is also complicated by possible shadowing by dust and spacecraft hardware 
Passive sterilization through particle fluxes (Europa)  Plans for missions to Europa take credit for reductions due to this 

Bioburden detection and assessment
The spore count is used as an indirect measure of the number of microorganisms present  Typically 99% of microorganisms by species will be non-spore forming and able to survive in dormant states, and so the actual number of viable dormant microorganisms remaining on the sterilized spacecraft is expected to be many times the number of spore-forming microorganisms 
One new spore method approved is the "Rapid Spore Assay"  This is based on commercial rapid assay systems, detects spores directly and not just viable microorganisms and gives results in 5 hours instead of 72 hours 

Challenges
It is also long been recognized that spacecraft cleaning rooms harbour polyextremophiles as the only microbes able to survive in them  For example, in a recent study, microbes from swabs of the Curiosity rover were subjected to desiccation, UV exposure, cold and pH extremes  Nearly 11% of the 377 strains survived more than one of these severe conditions  The genomes of resistant spore producing Bacillus sp  have been studied and genome level traits potentially linked to the resistance have been reported This does not mean that these microbes have contaminated Mars  This is just the first stage of the process of bioburden reduction  To contaminate Mars they also have to survive the low temperature, vacuum, UV and ionizing radiation during the months long journey to Mars, and then have to encounter a habitat on Mars and start reproducing there  Whether this has happened or not is a matter of probability  The aim of planetary protection is to make this probability as low as possible  The currently accepted target probability of contamination per mission is to reduce it to less than 0 01%, though in the special case of Mars, scientists also rely on the hostile conditions on Mars to take the place of the final stage of heat treatment decimal reduction used for Viking  But with current technology scientists cannot reduce probabilities to zero 

New methods
Two recent molecular methods have been approved for assessment of microbial contamination on 
spacecraft surfaces 
Adenosine triphosphate (ATP) detection - this is a key element in cellular metabolism  This method is able to detect non cultivable organisms  It can also be triggered by non viable biological material so can give a "false positive" 
Limulus Amebocyte Lysate assay - detects lipopolysaccharides (LPS)  This compound is only present in Gram-negative bacteria  The standard assay analyses spores from microbes that are primarily Gram-positive, making it difficult to relate the two methods 

Impact prevention
This particularly applies to orbital missions, Category III, as they are sterilized to a lower standard than missions to the surface  It is also relevant to landers, as an impact gives more opportunity for forward contamination, and impact could be on an unplanned target, such as a special region on Mars 
The requirement for an orbital mission is that it needs to remain in orbit for at least 20 years after arrival at Mars with probability of at least 99% and for 50 years with probability at least 95%  This requirement can be dropped if the mission is sterilized to Viking sterilization standard In the Viking era (1970s), the requirement was given as a single figure, that any orbital mission should have a probability of less than 0 003% probability of impact during the current exploratory phase of exploration of Mars For both landers and orbiters, the technique of trajectory biasing is used during approach to the target  The spacecraft trajectory is designed so that if communications are lost, it will miss the target 

Issues with impact prevention
Despite these measures there has been one notable failure of impact prevention  The Mars Climate Orbiter which was sterilized only to Category III, crashed on Mars in 1999 due to a mix-up of imperial and metric units  The office of planetary protection stated that it is likely that it burnt up in the atmosphere, but if it survived to the ground, then it could cause forward contamination Mars Observer is another Category III mission with potential planetary contamination  Communications were lost three days before its orbital insertion maneuver in 1993  It seems most likely it did not succeed in entering into orbit around Mars and simply continued past on a heliocentric orbit  If it did succeed in following its automatic programming, and attempted the manoeuvre, however, there is a chance it crashed on Mars Three landers have had hard landings on Mars   These are Schiaparelli EDM lander, the Mars Polar Lander, and Deep Space 2  These were all sterilized for surface missions but not for special regions (Viking pre-sterilization only)  Mars Polar Lander, and Deep Space 2 crashed into the polar regions which are now treated as special regions because of the possibility of forming liquid brines 

Controversies
Meteorite argument
Alberto G  Fairén and Dirk Schulze-Makuch published an article in Nature recommending that planetary protection measures need to be scaled down  They gave as their main reason for this, that exchange of meteorites between Earth and Mars means that any life on Earth that could survive on Mars has already got there and vice versa Robert Zubrin used similar arguments in favour of his view that the back contamination risk has no scientific validity 

Rebuttal by NRC
The meteorite argument was examined by the NRC in the context of back contamination  It is thought that all the Martian meteorites originate in relatively few impacts every few million years on Mars  The impactors would be kilometers in diameter and the craters they form on Mars tens of kilometers in diameter  Models of impacts on Mars are consistent with these findings Earth receives a steady stream of meteorites from Mars, but they come from relatively few original impactors, and transfer was more likely in the early Solar System  Also some life forms viable on both Mars and on Earth might be unable to survive transfer on a meteorite, and there is so far no direct evidence of any transfer of life from Mars to Earth in this way 
The NRC concluded that though transfer is possible, the evidence from meteorite exchange does not eliminate the need for back contamination protection methods Impacts on Earth able to send microorganisms to Mars are also infrequent  Impactors of 10 km across or larger can send debris to Mars through the Earth's atmosphere but these occur rarely, and were more common in the early Solar System 

Proposal to end planetary protection for Mars
In their 2013 paper "The Over Protection of Mars", Alberto Fairén and Dirk Schulze-Makuch suggested that we no longer need to protect Mars, essentially using Zubrin's meteorite transfer argument  This was rebutted in a follow up article "Appropriate Protection of Mars", in Nature by the current and previous planetary protection officers Catharine Conley and John Rummel 

Critique of Category V containment measures
The scientific consensus is that the potential for large-scale effects, either through pathogenesis or ecological disruption, is extremely small  Nevertheless, returned samples from Mars will be treated as potentially biohazardous until scientists can determine that the returned samples are safe  The goal is to reduce the probability of release of a Mars particle to less than one in a million 

Policy proposals
Non-biological contamination
A COSPAR workshop in 2010, looked at issues to do with protecting areas from non biological contamination  They recommended that COSPAR expand its remit to include such issues  Recommendations of the workshop include:

Recommendation 3 COSPAR should add a separate and parallel policy to provide guidance on requirements/best practices for protection of non-living/nonlife-related aspects of Outer Space and celestial bodies
Some ideas proposed include protected special regions, or "Planetary Parks" to keep regions of the Solar System pristine for future scientific investigation, and also for ethical reasons 

Proposed extensions
Astrobiologist Christopher McKay has argued that until we have better understanding of Mars, our explorations should be biologically reversible  For instance if all the microorganisms introduced to Mars so far remain dormant within the spacecraft, they could in principle be removed in the future, leaving Mars completely free of contamination from modern Earth lifeforms 
In the 2010 workshop one of the recommendations for future consideration was to extend the period for contamination prevention to the maximum viable lifetime of dormant microorganisms introduced to the planet 

"'Recommendation 4 ' COSPAR should consider that the appropriate protection of potential indigenous extraterrestrial life shall include avoiding the harmful contamination of any habitable environment —whether extant or foreseeable— within the maximum potential time of viability of any terrestrial organisms (including microbial spores) that may be introduced into that environment by human or robotic activity "
In the case of Europa, a similar idea has been suggested, that it is not enough to keep it free from contamination during our current exploration period  It might be that Europa is of sufficient scientific interest that the human race has a duty to keep it pristine for future generations to study as well  This was the majority view of the 2000 task force examining Europa, though there was a minority view of the same task force that such strong protection measures are not required 

"One consequence of this view is that Europa must be protected from contamination for an open-ended period, until it can be demonstrated that no ocean exists or that no organisms are present  Thus, we need to be concerned that over a time scale on the order of 10 million to 100 million years (an approximate age for the surface of Europa), any contaminating material is likely to be carried into the deep ice crust or into the underlying ocean "
In July 2018, the National Academies of Sciences, Engineering, and Medicine issued a Review and Assessment of Planetary Protection Policy Development Processes  In part, the report urges NASA to create a broad strategic plan that covers both forward and back contamination  The report also expresses concern about private industry missions, for which there is no governmental regulatory authority 

Protecting objects beyond the Solar System
The proposal by the German physicist Claudius Gros, that the technology of the Breakthrough Starshot project may be utilized to establish a biosphere of unicellular organisms on otherwise only transiently habitable exoplanets, has sparked a discussion, to what extent planetary protection should be extended to exoplanets  Gros argues that the extended timescales of
interstellar missions imply that planetary and exoplanetary protection have different ethical groundings 

See also
Astrobiology – Science concerned with life in the universe
ExoMars – Astrobiology programme
List of microorganisms tested in outer space
Mars 2020 – Astrobiology Mars rover mission by NASA
Panspermia – Hypothesis on the interstellar spreading of primordial life
Passage 3:
Transit (astronomy)
In astronomy, a transit (or astronomical transit) is a phenomenon when a celestial body passes directly between a larger body and the observer  As viewed from a particular vantage point, the transiting body appears to move across the face of the larger body, covering a small portion of it The word "transit" refers to cases where the nearer object appears smaller than the more distant object  Cases where the nearer object appears larger and completely hides the more distant object are known as occultations 
However, the probability of seeing a transiting planet is low because it is dependent on the alignment of the three objects in a nearly perfectly straight line  Many parameters of  a planet and its parent star can be determined based on the transit 

In the Solar System
One example of a transit involves the motion of a planet between a terrestrial observer and the Sun  This can happen only with inferior planets, namely Mercury and Venus (see transit of Mercury and transit of Venus)  However, because a transit is dependent on the point of observation, the Earth itself transits the Sun if observed from Mars  In the solar transit by the Moon captured during calibration of the STEREO B spacecraft's ultraviolet imaging, the Moon appears much smaller than it does when seen from Earth, because the spacecraft–Moon separation was several times greater than the Earth–Moon distance 
The term can also be used to describe the motion of a satellite across its parent planet, for instance one of the Galilean satellites (Io, Europa, Ganymede, Callisto) across Jupiter, as seen from Earth 
Although rare, cases where four bodies are lined up do happen  One of these events occurred on 27 June 1586, when Mercury transited the Sun as seen from Venus at the same time as a transit of Mercury from Saturn and a transit of Venus from Saturn 

Notable observations
No missions were planned to coincide with the transit of Earth visible from Mars on 11 May 1984 and the Viking missions had been terminated a year previously  Consequently, the next opportunity to observe such an alignment will be in 2084 
On 21 December 2012, the Cassini–Huygens probe, in orbit around Saturn, observed the planet Venus transiting the Sun On 3 June 2014, the Mars rover Curiosity observed the planet Mercury transiting the Sun, marking the first time a planetary transit has been observed from a celestial body besides Earth 

Mutual planetary transits
In rare cases, one planet can pass in front of another  If the nearer planet appears smaller than the more distant one, the event is called a mutual planetary transit 

Outside the Solar System
Exoplanet Detection

The transit method can be used to discover exoplanets  As a planet eclipses/transits its host star it will block a portion of the light from the star  If the planet transits in-between the star and the observer the change in light can be measured to construct a light curve  Light curves are measured with a charge-coupled device  The light curve of a star can disclose several physical characteristics of the planet and star, such as density  Multiple transit events must be measured to determine the characteristics which tend to occur at regular intervals  Multiple planets orbiting the same host star can cause transit-timing variations (TTV)  TTV is caused by the gravitational forces of all orbiting bodies acting upon each other  The probability of seeing a transit from Earth is low, however  The probability is given by the following equation 

  
    
      
        
          P
          
            transit
          
        
        =
        (
        
          R
          
            star
          
        
        +
        
          R
          
            planet
          
        
        )
        
          /
        
        a
        ,
      
    
    {\displaystyle P_{\text{transit}}=(R_{\text{star}}+R_{\text{planet}})/a,}
  where Rstar and Rplanet are the radius of the star and planet, respectively, and a is the semi-major axis  Because of the low probability of a transit in any specific system, large selections of the sky must be regularly observed in order to see a transit  Hot Jupiters are more likely to be seen because of their larger radius and short semi-major axis  In order to find Earth-sized planets, red dwarf stars are observed because of their small radius  Even though transiting has a low probability it has proven itself to be a good technique for discovering exoplanets 
In recent years, the discovery of extrasolar planets has prompted interest in the possibility of detecting their transits across their own stellar primaries  HD 209458b was the first such transiting planet to be detected 
The transit of celestial objects is one of the few key phenomena used today for the study of exoplanetary systems  Today, transit photometry is the leading form of exoplanet discovery  As an exoplanet moves in front of its host star there is a dimming in the luminosity of the host star that can be measured  Larger planets make the dip in luminosity more noticeable and easier to detect  Followup observations using other methods are often carried out to ensure it is a planet 
There are currently (December 2018) 2345 planets confirmed with Kepler light curves for stellar host 

Contacts
During a transit there are four "contacts", when the circumference of the small circle (small body disk) touches the circumference of the large circle (large body disk) at a single point   Historically, measuring the precise time of each point of contact was one of the most accurate ways to determine the positions of astronomical bodies   The contacts happen in the following order:

First contact: the smaller body is entirely outside the larger body, moving inward ("exterior ingress")
Second contact: the smaller body is entirely inside the larger body, moving further inward ("interior ingress")
Third contact: the smaller body is entirely inside the larger body, moving outward ("interior egress")
Fourth contact: the smaller body is entirely outside the larger body, moving outward ("exterior egress")A fifth named point is that of greatest transit, when the apparent centers of the two bodies are nearest to each other, halfway through the transit 

Missions
Since transit photometry allows for scanning large celestial areas with a simple procedure, it has been the most popular and successful form of finding exoplanets in the past decade and includes many projects, some of which have already been retired, others in use today, and some in progress of being planned and created  The most successful projects include HATNet, KELT, Kepler, and WASP, and some new and developmental stage missions such as TESS, HATPI, and others which can be found among the List of Exoplanet Search Projects 

HATNet
HATNet Project is a set of northern telescopes in Fred Lawrence Whipple Observatory, Arizona and Mauna Kea Observatories, HI, and southern telescopes around the globe, in Africa, Australia, and South America, under the HATSouth branch of the project  These are small aperture telescopes, just like KELT, and look at a wide field which allows them to scan a large area of the sky for possible transiting planets  In addition, their multitude and spread around the world allows for 24/7 observation of the sky so that more short-period transits can be caught A third sub-project, HATPI, is currently under construction and will survey most of the night sky seen from its location in Chile 

KELT
KELT is a terrestrial telescope mission designed to search for transiting systems of planets of magnitude 8<M<10  It began operation in October 2004 in Winer Observatory and has a southern companion telescope added in 2009  KELT North observes "26-degree wide strip of sky that is overhead from North America during the year", while KELT South observes single target areas of the size 26 by 26 degrees  Both telescopes can detect and identify transit events as small as a 1% flux dip, which allows for detection of planetary systems similar to those in our planetary system 

Kepler / K2
The Kepler satellite served the Kepler mission between 7 March 2009 and 11 May 2013, where it observed one part of the sky in search of transiting planets within a 115 square degrees of the sky around the Cygnus, Lyra, and Draco constellations  After that, the satellite continued operating until 15 November 2018, this time changing its field along the ecliptic to a new area roughly every 75 days due to reaction wheel failure 

TESS
TESS was launched on 18 April 2018, and is planned to survey most of the sky by observing it strips defined along the right ascension lines for 27 days each  Each area surveyed is 27 by 90 degrees  Because of the positioning of sections, the area near TESS's rotational axis will be surveyed for up to 1 year, allowing for the identification of planetary systems with longer orbital periods 

See also
Eclipse
Kepler Mission
Occultation
Syzygy (astronomy)
Conjunction (astronomy)
Opposition (planets)
Transit of asteroids
Transit of Deimos from Mars
Transit of Phobos from Mars
Transit of Vulcan
Transit of Mercury from Mars
Transit of Earth from Mars
Passage 4:
Roche limit
In celestial mechanics, the Roche limit, also called Roche radius, is the distance from a celestial body within which a second celestial body, held together only by its own force of gravity, will disintegrate because the first body's tidal forces exceed the second body's self-gravitation  Inside the Roche limit, orbiting material disperses and forms rings, whereas outside the limit, material tends to coalesce  The Roche radius depends on the radius of the first body and on the ratio of the bodies' densities 
The term is named after Édouard Roche (French: [ʁɔʃ], English:  ROSH), the French astronomer who first calculated this theoretical limit in 1848 

Explanation
The Roche limit typically applies to a satellite's disintegrating due to tidal forces induced by its primary, the body around which it orbits  Parts of the satellite that are closer to the primary are attracted more strongly by gravity from the primary than parts that are farther away; this disparity effectively pulls the near and far parts of the satellite apart from each other, and if the disparity (combined with any centrifugal effects due to the object's spin) is larger than the force of gravity holding the satellite together, it can pull the satellite apart  Some real satellites, both natural and artificial, can orbit within their Roche limits because they are held together by forces other than gravitation  Objects resting on the surface of such a satellite would be lifted away by tidal forces  A weaker satellite, such as a comet, could be broken up when it passes within its Roche limit 
Since, within the Roche limit, tidal forces overwhelm the gravitational forces that might otherwise hold the satellite together, no satellite can gravitationally coalesce out of smaller particles within that limit  Indeed, almost all known planetary rings are located within their Roche limit  (Notable exceptions are Saturn's E-Ring and Phoebe ring  These two rings could possibly be remnants from the planet's proto-planetary accretion disc that failed to coalesce into moonlets, or conversely have formed when a moon passed within its Roche limit and broke apart )
The Roche limit is not the only factor that causes comets to break apart  Splitting by thermal stress, internal gas pressure and rotational splitting are other ways for a comet to split under stress 

Determination
The limiting distance to which a satellite can approach without breaking up depends on the rigidity of the satellite  At one extreme, a completely rigid satellite will maintain its shape until tidal forces break it apart  At the other extreme, a highly fluid satellite gradually deforms leading to increased tidal forces, causing the satellite to elongate, further compounding the tidal forces and causing it to break apart more readily 
Most real satellites would lie somewhere between these two extremes, with tensile strength rendering the satellite neither perfectly rigid nor perfectly fluid  For example, a rubble-pile asteroid will behave more like a fluid than a solid rocky one; an icy body will behave quite rigidly at first but become more fluid as tidal heating accumulates and its ices begin to melt 
But note that, as defined above, the Roche limit refers to a body held together solely by the gravitational forces which cause otherwise unconnected particles to coalesce, thus forming the body in question  The Roche limit is also usually calculated for the case of a circular orbit, although it is straightforward to modify the calculation to apply to the case (for example) of a body passing the primary on a parabolic or hyperbolic trajectory 

Rigid satellites
The rigid-body Roche limit is a simplified calculation for a spherical satellite  Irregular shapes such as those of tidal deformation on the body or the primary it orbits are neglected  It is assumed to be in hydrostatic equilibrium  These assumptions, although unrealistic, greatly simplify calculations 
The Roche limit for a rigid spherical satellite is the distance, 
  
    
      
        d
      
    
    {\displaystyle d}
  , from the primary at which the gravitational force on a test mass at the surface of the object is exactly equal to the tidal force pulling the mass away from the object:

  
    
      
        d
        =
        
          R
          
            M
          
        
        
          
            (
            
              2
              
                
                  
                    ρ
                    
                      M
                    
                  
                  
                    ρ
                    
                      m
                    
                  
                
              
            
            )
          
          
            
              1
              3
            
          
        
      
    
    {\displaystyle d=R_{M}\left(2{\frac {\rho _{M}}{\rho _{m}}}\right)^{\frac {1}{3}}}
  where 
  
    
      
        
          R
          
            M
          
        
      
    
    {\displaystyle R_{M}}
   is the radius of the primary, 
  
    
      
        
          ρ
          
            M
          
        
      
    
    {\displaystyle \rho _{M}}
   is the density of the primary, and 
  
    
      
        
          ρ
          
            m
          
        
      
    
    {\displaystyle \rho _{m}}
   is the density of the satellite  This can be equivalently written as

  
    
      
        d
        =
        
          R
          
            m
          
        
        
          
            (
            
              2
              
                
                  
                    M
                    
                      M
                    
                  
                  
                    M
                    
                      m
                    
                  
                
              
            
            )
          
          
            
              1
              3
            
          
        
      
    
    {\displaystyle d=R_{m}\left(2{\frac {M_{M}}{M_{m}}}\right)^{\frac {1}{3}}}
  where 
  
    
      
        
          R
          
            m
          
        
      
    
    {\displaystyle R_{m}}
   is the radius of the secondary, 
  
    
      
        
          M
          
            M
          
        
      
    
    {\displaystyle M_{M}}
   is the mass of the primary, and 
  
    
      
        
          M
          
            m
          
        
      
    
    {\displaystyle M_{m}}
   is the mass of the secondary 
This does not depend on the size of the objects, but on the ratio of densities  This is the orbital distance inside of which loose material (e g  regolith) on the surface of the satellite closest to the primary would be pulled away, and likewise material on the side opposite the primary will also go away from, rather than toward, the satellite 

Fluid satellites
A more accurate approach for calculating the Roche limit takes the deformation of the satellite into account  An extreme example would be a tidally locked liquid satellite orbiting a planet, where any force acting upon the satellite would deform it into a prolate spheroid 
The calculation is complex and its result cannot be represented in an exact algebraic formula  Roche himself derived the following approximate solution for the Roche limit:

  
    
      
        d
        ≈
        2 44
        R
        
          
            (
            
              
                
                  ρ
                  
                    M
                  
                
                
                  ρ
                  
                    m
                  
                
              
            
            )
          
          
            1
            
              /
            
            3
          
        
      
    
    {\displaystyle d\approx 2 44R\left({\frac {\rho _{M}}{\rho _{m}}}\right)^{1/3}}
  However, a better approximation that takes into account the primary's oblateness and the satellite's mass is:

  
    
      
        d
        ≈
        2 423
        R
        
          
            (
            
              
                
                  ρ
                  
                    M
                  
                
                
                  ρ
                  
                    m
                  
                
              
            
            )
          
          
            1
            
              /
            
            3
          
        
        
          
            (
            
              
                
                  (
                  1
                  +
                  
                    
                      m
                      
                        3
                        M
                      
                    
                  
                  )
                  +
                  
                    
                      c
                      
                        3
                        R
                      
                    
                  
                  (
                  1
                  +
                  
                    
                      m
                      M
                    
                  
                  )
                
                
                  1
                  −
                  c
                  
                    /
                  
                  R
                
              
            
            )
          
          
            1
            
              /
            
            3
          
        
      
    
    {\displaystyle d\approx 2 423R\left({\frac {\rho _{M}}{\rho _{m}}}\right)^{1/3}\left({\frac {(1+{\frac {m}{3M}})+{\frac {c}{3R}}(1+{\frac {m}{M}})}{1-c/R}}\right)^{1/3}}
  where 
  
    
      
        c
        
          /
        
        R
      
    
    {\displaystyle c/R}
   is the oblateness of the primary  The numerical factor is calculated with the aid of a computer 
The fluid solution is appropriate for bodies that are only loosely held together, such as a comet  For instance, comet Shoemaker–Levy 9's decaying orbit around Jupiter passed within its Roche limit in July 1992, causing it to fragment into a number of smaller pieces  On its next approach in 1994 the fragments crashed into the planet  Shoemaker–Levy 9 was first observed in 1993, but its orbit indicated that it had been captured by Jupiter a few decades prior 

See also
Roche lobe
Chandrasekhar limit
Hill sphere
Spaghettification (the extreme case of tidal distortion)
Black hole
Triton (moon) (Neptune's satellite)
Comet Shoemaker–Levy 9
Passage 5:
Ulysses (spacecraft)
Ulysses ( yoo-LISS-eez, UK also  YOO-liss-eez) was a robotic space probe whose primary mission was to orbit the Sun and study it at all latitudes  It was launched in 1990 and made three "fast latitude scans" of the Sun in 1994/1995, 2000/2001, and 2007/2008  In addition, the probe studied several comets  Ulysses was a joint venture of the European Space Agency (ESA) and the United States' National Aeronautics and Space Administration (NASA), under leadership of ESA with participation from Canada's National Research Council  The last day for mission operations on Ulysses was 30 June 2009 To study the Sun at all latitudes, the probe needed to change its orbital inclination and leave the plane of the Solar System  To change the orbital inclination of a spacecraft to about 80° requires a large change in heliocentric velocity, the energy to achieve which far exceeded the capabilities of any launch vehicle  To reach the desired orbit around the Sun, the mission's planners chose a gravity assist maneuver around Jupiter, but this Jupiter encounter meant that Ulysses could not be powered by solar cells  The probe was powered instead by a radioisotope thermoelectric generator (RTG) 
The spacecraft was originally named Odysseus, because of its lengthy and indirect trajectory to study the solar poles  It was renamed Ulysses, the Latin translation of "Odysseus", at ESA's request in honor not only of Homer's mythological hero but also of Dante's character in the Inferno  Ulysses was originally scheduled for launch in May 1986 aboard the Space Shuttle Challenger on STS-61-F  Due to the 28 January 1986 loss of Challenger, the launch of Ulysses was delayed until 6 October 1990 aboard Discovery (mission STS-41) 

Spacecraft
The spacecraft was designed by ESA and built by Dornier Systems, a German aircraft manufacturer  The body was roughly a box, approximately 3 2 m × 3 3 m × 2 1 m (10 5 ft × 10 8 ft × 6 9 ft) in size  The box mounted the 1 65 m (5 ft 5 in) dish antenna and the GPHS-RTG radioisotope thermoelectric generator (RTG) power source  The box was divided into noisy and quiet sections  The noisy section abutted the RTG; the quiet section housed the instrument electronics  Particularly "loud" components, such as the preamps for the radio dipole, were mounted outside the structure entirely, and the box acted as a Faraday cage 
Ulysses was spin-stabilised about its z-axis which roughly coincides with the axis of the dish antenna  The RTG, whip antennas, and instrument boom were placed to stabilize this axis, with the spin rate nominally at 5 rpm  Inside the body was a hydrazine fuel tank  Hydrazine monopropellant was used for course corrections inbound to Jupiter, and later used exclusively to repoint the spin axis (and thus, the antenna) at Earth  The spacecraft was controlled by eight thrusters in two blocks  Thrusters were pulsed in the time domain to perform rotation or translation  Four sun sensors detected orientation  For fine attitude control, the S-band antenna feed was mounted slightly off-axis  This offset feed combined with the spacecraft spin introduced an apparent oscillation to a radio signal transmitted from Earth when received on board the spacecraft  The amplitude and phase of this oscillation were proportional to the orientation of the spin axis relative to the Earth direction  This method of determining the relative orientation is called conical scanning and was used by early radars for automated tracking of targets and was also very common in early infrared guided missiles 
The spacecraft used S-band for uplinked commands and downlinked telemetry, through dual redundant 5-watt transceivers  The spacecraft used X-band for science return (downlink only), using dual 20 watts TWTAs until the failure of the last remaining TWTA in January 2008  Both bands used the dish antenna with prime-focus feeds, unlike the Cassegrain feeds of most other spacecraft dishes 
Dual tape recorders, each of approximately 45-megabit capacity, stored science data between the nominal eight-hour communications sessions during the prime and extended mission phases 
The spacecraft was designed to withstand both the heat of the inner Solar System and the cold at Jupiter's distance  Extensive blanketing and electric heaters protected the probe against the cold temperatures of the outer Solar System 
Multiple computer systems (CPUs/microprocessors/Data Processing Units) are used in several of the scientific instruments, including several radiation-hardened RCA CDP1802 microprocessors  Documented 1802 usage includes dual-redundant 1802s in the COSPIN, and at least one 1802 each in the GRB, HI-SCALE, SWICS, SWOOPS and URAP instruments, with other possible microprocessors incorporated elsewhere Total mass at launch was 371 kg (818 lb), of which 33 5 kg was hydrazine propellant used for attitude control and orbit correction 

Instruments
The twelve different Instruments came from ESA and NASA  The first design was based on two probes, one by NASA and one by ESA, but the probe of NASA was defunded and in the end the instruments of the cancelled probe were mounted on Ulyssses 
Radio/Plasma antennas: Two beryllium copper antennas were unreeled outwards from the body, perpendicular to the RTG and spin axis  Together this dipole spanned 72 meters (236 2 ft)  A third antenna, of hollow beryllium copper, was deployed from the body, along the spin axis opposite the dish  It was a monopole antenna, 7 5 meters (24 6 ft) long  These measured radio waves generated by plasma releases, or the plasma itself as it passed over the spacecraft  This receiver ensemble was sensitive from DC to 1 MHz 
Experiment Boom: A third type of boom, shorter and much more rigid, extended from the last side of the spacecraft, opposite the RTG  This was a hollow carbon-fiber tube, of 50 mm (2 in ) diameter  It can be seen in the photo as the silver rod stowed alongside the body  It carried four types of instruments: a solid-state X-ray instrument, composed of two silicon detectors, to study X-rays from solar flares and Jupiter's aurorae; the Gamma-Ray Burst experiment, consisting of two CsI scintillator crystals with photomultipliers; two different magnetometers, a helium vector magnetometer and a fluxgate magnetometer; and a two-axis magnetic search coil antenna measured AC magnetic fields 
Body-Mounted Instruments: Detectors for electrons, ions, neutral gas, dust, and cosmic rays were mounted on the spacecraft body around the quiet section 
Lastly, the radio communications link could be used to search for gravitational waves (through Doppler shifts) and to probe the Sun's atmosphere through radio occultation  No gravitational waves were detected 
Total instrument mass was 55 kg 
Magnetometer (MAG): MAG measured the magnetic field in the heliosphere  Measurements of Jupiter's magnetic field were also performed 
Solar Wind Plasma Experiment (SWOOPS): detected the solar wind at all solar distances and latitudes and in three dimensions  It measured positive ions and electrons 
Solar Wind Ion Composition Instrument (SWICS): determined composition, temperature and speed of the atoms and ions that comprise the solar wind 
Unified Radio and Plasma Wave Instrument (URAP): picked up radio waves from the Sun and electromagnetic waves generated in the solar wind close to the spacecraft 
Energetic Particle Instrument (EPAC) and GAS: EPAC investigated the energy, fluxes and distribution of energetic particles in the heliosphere  GAS studied the uncharged gases (helium) of interstellar origin 
Low-Energy Ion and Electron Experiment (HI-SCALE): investigated the energy, fluxes and distribution of energetic particles in the heliosphere 
Cosmic Ray and Solar Particle Instrument (COSPIN): investigated the energy, fluxes and distribution of energetic particles and galactic cosmic rays in the heliosphere 
Solar X-ray and Cosmic Gamma-Ray Burst Instrument (GRB): studied cosmic gamma ray bursts and X-rays from solar flares 
Dust Experiment (DUST): Direct measurements of interplanetary and interstellar dust grains to investigate their properties as functions of the distance from the Sun and solar latitude 

Mission
Planning
Until Ulysses, the Sun had only been observed from low solar latitudes  The Earth's orbit defines the ecliptic plane, which differs from the Sun's equatorial plane by only 7 25°  Even spacecraft directly orbiting the Sun do so in planes close to the ecliptic because a direct launch into a high-inclination solar orbit would require a prohibitively large launch vehicle 
Several spacecraft (Mariner 10, Pioneer 11, and Voyagers 1 and 2) had performed gravity assist maneuvers in the 1970s  Those maneuvers were to reach other planets also orbiting close to the ecliptic, so they were mostly in-plane changes  However, gravity assists are not limited to in-plane maneuvers; a suitable flyby of Jupiter could produce a significant plane change  An Out-Of-The-Ecliptic mission (OOE) was thereby proposed  See article Pioneer H 
Originally, two spacecraft were to be built by NASA and ESA, as the International Solar Polar Mission  One would be sent over Jupiter, then under the Sun  The other would fly under Jupiter, then over the Sun  This would provide simultaneous coverage  Due to cutbacks, the U S  spacecraft was cancelled in 1981  One spacecraft was designed, and the project recast as Ulysses, due to the indirect and untried flight path  NASA would provide the Radioisotope Thermoelectric Generator (RTG) and launch services, ESA would build the spacecraft assigned to Astrium GmbH, Friedrichshafen, Germany (formerly Dornier Systems)  The instruments would be split into teams from universities and research institutes in Europe and the United States  This process provided the 12 instruments on board 
The changes delayed launch from February 1983 to May 1986 when it was to be deployed by the Space Shuttle Challenger (boosted by the proposed Centaur G Prime upper stage  However, the Challenger disaster forced a two-and-a-half year stand down of the shuttle fleet, mandated the cancellation of the Centaur-G upper stage, and pushed the launch date to October 1990 

Launch
Ulysses was deployed into low Earth orbit from the Space Shuttle Discovery  From there, it was propelled on a trajectory to Jupiter by a combination of solid rocket motors  This upper stage consisted of a two-stage Boeing IUS (Inertial Upper Stage), plus a McDonnell Douglas PAM-S (Payload Assist Module-Special)  The IUS was inertially stabilised and actively guided during its burn  The PAM-S was unguided and it and Ulysses were spun up to 80 rpm for stability at the start of its burn  On burnout of the PAM-S, the motor and spacecraft stack was yo-yo de-spun (weights deployed at the end of cables) to below 8 rpm prior to separation of the spacecraft  On leaving Earth, the spacecraft became the fastest ever artificially-accelerated spacecraft, and held that title until the New Horizons probe was launched 
On its way to Jupiter, the spacecraft was in an elliptical non-Hohmann transfer orbit  At this time, Ulysses had a low orbital inclination to the ecliptic 

Jupiter swing-by
It arrived at Jupiter on 8 February 1992 for a swing-by maneuver that increased its inclination to the ecliptic by 80 2°  The giant planet's gravity bent the spacecraft's flight path southward and away from the ecliptic plane  This put it into a final orbit around the Sun that would take it past the Sun's north and south poles  The size and shape of the orbit were adjusted to a much smaller degree so that aphelion remained at approximately 5 AU, Jupiter's distance from the Sun, and perihelion was somewhat greater than 1 AU, the Earth's distance from the Sun  The orbital period is approximately six years 

Polar regions of the Sun
Between 1994 and 1995 it explored both the southern and northern polar regions of the Sun, respectively 

Comet C/1996 B2 (Hyakutake)
On 1 May 1996, the spacecraft unexpectedly crossed the ion tail of Comet Hyakutake (C/1996 B2), revealing the tail to be at least 3 8 AU in length 

Comet C/1999 T1 (McNaught–Hartley)
An encounter with a comet tail happened again in 2004  when Ulysses flew through the ion tailings of C/1999 T1 (McNaught-Hartley)  A coronal mass ejection carried the cometary material to Ulysses 

Second Jupiter encounter
Ulysses approached aphelion in 2003/2004 and made further distant observations of Jupiter 

Comet C/2006 P1 (McNaught)
In 2007, Ulysses passed through the tail of comet C/2006 P1 (McNaught)  The results were surprisingly different from its pass through Hyakutake's tail, with the measured solar wind velocity dropping from approximately 700 kilometers per second (1,566,000 mph) to less than 400 kilometers per second (895,000 mph) 

Extended mission
ESA's Science Program Committee approved the fourth extension of the Ulysses mission to March 2004  thereby allowing it to operate over the Sun's poles for the third time in 2007 and 2008  After it became clear that the power output from the spacecraft's RTG would be insufficient to operate science instruments and keep the attitude control fuel, hydrazine, from freezing, instrument power sharing was initiated  Up until then, the most important instruments had been kept online constantly, whilst others were deactivated  When the probe neared the Sun, its power-hungry heaters were turned off and all instruments were turned on On 22 February 2008, 17 years and 4 months after the launch of the spacecraft, ESA and NASA announced that the mission operations for Ulysses would likely cease within a few months  On 12 April 2008, NASA announced that the end date will be 1 July 2008 The spacecraft operated successfully for over four times its design life  A component within the last remaining working chain of X-band downlink subsystem failed on 15 January 2008  The other chain in the X-band subsystem had previously failed in 2003 Downlink to Earth resumed on S-band, but the beamwidth of the high gain antenna in the S-band was not as narrow as in the X–band, so that the received downlink signal was much weaker, hence reducing the achievable data rate  As the spacecraft traveled on its outbound trajectory to the orbit of Jupiter, the downlink signal would have eventually fallen below the receiving capability of even the largest antennas (70 meters - 229 7 feet - in diameter) of the Deep Space Network 
Even before the downlink signal was lost due to distance, the hydrazine attitude control fuel on board the spacecraft was considered likely to freeze, as the radioisotope thermal generators (RTGs) failed to generate enough power for the heaters to overcome radiative heat loss into space  Once the hydrazine froze, the spacecraft would no longer be able to maneuver to keep its high gain antenna pointing towards Earth, and the downlink signal would then be lost in a matter of days  The failure of the X-band communications subsystem hastened this, because the coldest part of the fuel pipework was routed over the X-band traveling-wave tube amplifiers, because they generated enough heat during operation to keep the propellant plumbing warm 
The previously announced mission end date of 1 July 2008, came and went but mission operations continued albeit in a reduced capacity  The availability of science data gathering was limited to only when Ulysses was in contact with a ground station due to the deteriorating S-band downlink margin no longer being able to support simultaneous real-time data and tape recorder playback  When the spacecraft was out of contact with a ground station, the S-band transmitter was switched off and the power was diverted to the internal heaters to add to the warming of the hydrazine  On 30 June 2009, ground controllers sent commands to switch to the low gain antennas  This stopped communications with the spacecraft, in combination with previous commands to shut down its transmitter entirely 

Results
During cruise phases, Ulysses provided unique data  As the only spacecraft out of the ecliptic with a gamma-ray instrument, Ulysses was an important part of the InterPlanetary Network (IPN)  The IPN detects gamma ray bursts (GRBs); since gamma rays cannot be focused with mirrors, it was very difficult to locate GRBs with enough accuracy to study them further  Instead, several spacecraft can locate the burst through multilateration  Each spacecraft has a gamma-ray detector, with readouts noted in tiny fractions of a second  By comparing the arrival times of gamma showers with the separations of the spacecraft, a location can be determined, for follow-up with other telescopes  Because gamma rays travel at the speed of light, wide separations are needed  Typically, a determination came from comparing: one of several spacecraft orbiting the Earth, an inner-Solar-system probe (to Mars, Venus, or an asteroid), and Ulysses  When Ulysses crossed the ecliptic twice per orbit, many GRB determinations lost accuracy 
Additional discoveries:
Data provided by Ulysses led to the discovery that the Sun's magnetic field interacts with the Solar System in a more complex fashion than previously assumed 
Data provided by Ulysses led to the discovery that dust coming into the Solar System from deep space was 30 times more abundant than previously expected 
In 2007–2008 data provided by Ulysses led to the determination that the magnetic field emanating from the Sun's poles is much weaker than previously observed 
That the solar wind has "grown progressively weaker during the mission and is currently at its weakest since the start of the Space Age" 

Fate
Ulysses will most likely continue in heliocentric orbit around the Sun indefinitely  However, there is a chance that in one of its re-encounters with Jupiter a close fly-by with one of the Jovian moons would be enough to alter its course and so the probe would enter a hyperbolic trajectory around the Sun and leave the Solar System 

See also
Advanced Composition Explorer – NASA satellite of the Explorer program
List of heliophysics missions
List of missions to the outer planets
Parker Solar Probe – NASA robotic space probe of the outer corona of the Sun
Solar and Heliospheric Observatory – European space observatory
STEREO – Solar observation mission (2006–present)
TRACE – NASA satellite of the Explorer program
WIND – NASA probe to study solar wind, at L1 since 1995
Solar Orbiter – European space-based solar observatory
Context 2: Passage 1:
Cass Corridor
The Cass Corridor is the name of the neighborhoods on the west end of Midtown Detroit  It includes the Cass Park Historic District, the Cass-Davenport Historic District and Old Chinatown  The corridor's main street, Cass Avenue, runs parallel with M-1 (Woodward Avenue), a main Detroit artery running north toward New Center  Though Cass runs from Congress Street, ending a few miles farther north at West Grand Boulevard, the Cass Corridor generally is defined as between Interstate 75 (I-75) at its southern end and Interstate 94 (I-94) to the north, and stretches from Woodward to the east and to the west: John C  Lodge (M-10 service drive) north of Temple, and Grand River Avenue south of Temple 

History
Significant landmarks of the area include the Detroit Masonic Temple (the world's largest building of its kind), Cass Technical High School, and the Metropolitan Center for High Technology are all located along Cass  Little Caesars Arena, open since September 5, 2017, as the new home of the NHL's Detroit Red Wings and the NBA's Detroit Pistons, is on the west side of Woodward Avenue near I-75 
In the 1960s and '70s, the Cass Corridor became an area of cultural significance  Artists began renting cheap studio space in the Cass Corridor, which was near Detroit's Cultural Center Historic District  Artists associated with or influenced by the Cass Corridor artist movement include Brenda Goodman, Gary Grimshaw, Tyree Guyton, Charles McGee, Ann Mikolowski, Jim Pallas, Ellen Phelan, Gilda Snowden, Robert Wilbert, and Theo Wujcik In the 1970s, the Cass Corridor was a poor neighborhood known for drugs, prostitution and sex crimes against children  The area was of significance in the Oakland County Child Killer case Creem, which billed itself as "America's Only Rock 'n' Roll Magazine," had its headquarters in the area  The student population contributes to the bohemian atmosphere in Cass Corridor  The artistic community has produced a number of significant artists, including Sixto Rodriguez, Negative Approach and The White Stripes, who played their first show at the Gold Dollar 
Cass Corridor is also the location of the annual Dally in the Alley arts festival Since the 2000s, Joel Landy, president of the Cass Avenue Development construction company, has renovated and remodelled several buildings in the Cass Corridor  Landy was also featured in the television series American Pickers (season 3 episode "Motor City", September 19, 2011)  Since 1997, Avalon International Breads has been located in the Cass Corridor  In 2015, Jack White of the White Stripes, opened a retail store for his Record Label, Third Man Records at the Corner of Canfield and Cass From 2009, Dr  Alesia Montgomery of Michigan State University conducted a 5-year study visualizing a reinvented Detroit as a green city, with a particular emphasis on the Cass Corridor 

See also
Chinatown Detroit
List of places named for Lewis Cass
Passage 2:
Possessed (roller coaster)
Possessed is an Inverted Impulse launched roller coaster located at Dorney Park & Wildwater Kingdom in Allentown, Pennsylvania  Manufactured by Intamin and designed by Werner Stengel, the roller coaster originally debuted at Six Flags Ohio amusement park as Superman: Ultimate Escape on May 5, 2000  After Cedar Fair purchased the park and renamed it back to Geauga Lake in early 2004, the coaster was immediately renamed Steel Venom  The ride closed in 2006 and was moved to Dorney Park  It reopened in 2008 briefly under the name Voodoo, and was renamed Possessed for the 2009 season  The model is identical to five other impulse coaster installations at other amusement parks  A larger version called Wicked Twister was located at Cedar Point until its closure in September 2021 

History
Geauga Lake era (2000–2006)
The ride opened on May 5, 2000 at Six Flags Ohio as Superman: Ultimate Escape  It was based on the DC Comics character Superman  Following Cedar Fair's acquisition of the park in 2004, in which the original Geauga Lake name was reinstituted to the park, all Looney Tunes and DC Comics branding owned by Six Flags was removed  In the process, the coaster was renamed Steel Venom, while receiving a new logo with a black background featuring a silver and purple snake  Even though Cedar Fair removed any mentions of Superman from the ride, the original blue, red, and yellow color scheme remained intact The coaster was dismantled after the 2006 season and put into storage  At the end of the 2007 season, Cedar Fair announced the amusement park section of the park would close and the park would operate exclusively as Wildwater Kingdom  Many rides at the park were relocated to other parks in the Cedar Fair chain 

Dorney Park era (2007–present)
Steel Venom was relocated to Dorney Park, where it reopened as Voodoo several weeks into the 2008 season on May 17, 2008  Prior to opening at Dorney Park, it was repainted to its current color scheme, as shown in the picture above, the supports were repainted teal and the track was repainted yellow  In 2009, the name was changed to Possessed after Six Flags expressed concerns over the name Voodoo, which it had recently trademarked for another ride  Instead of challenging, Cedar Fair opted to appease Six Flags and rename the coaster  Cedar Fair turned the incident into a marketing opportunity, which focused on a story that the ride was overtaken by evil spirits, fitting in line with the ride's original theme Possessed was closed for the entire 2020 season due to the COVID-19 pandemic  It reopened in 2021 

Design
The coaster's layout consists of two vertical spikes, one twisted and the other straight vertical with a holding brake, connected by a launch and station tract to form a basic "U" layout  The original ride began with riders being launched forward by the use of linear induction motors  After the initial launch, the train heads up the twisted vertical spike that twists the train 180 degrees  The train then falls and is launched backwards up the vertical spike  It shuttles back and forth three times  During the ride's initial years, the holding brake at the top of the vertical rear spike would engage on the final launch, locking the train in place for a very brief moment  This holding brake is no longer operational  Valleyfair's Steel Venom is currently the only Intamin impulse coaster in the United States still operating with its holding brake 
The maximum G-force of the ride is 3 7 Gs, expectantly low for a twisted impulse coaster 

Gallery
Passage 3:
Georgia Depression
The Georgia Depression is a depression in the Pacific Northwest region of western North America  The depression includes the lowland regions of southwestern British Columbia and northwestern Washington along the shores of the Salish Sea 

Formation
The Georgia Depression was formed out of the collision of continental plates about 150 million years ago  During this period, the depression manifested as a broad valley with various rivers flowing down into it to reach the Pacific Ocean where the mouth of the Strait of Juan de Fuca lies Much of the current topography was formed through the erosion of the depression by the Cordilleran Ice Sheet during the Vashon Glaciation, which lasted from about 19,000 – 16,000 BP  The retreat of the ice sheet revealed a scarred landscape that filled in with sea water once it had retreated beyond what is now the Strait of Juan de Fuca, forming the Salish Sea 

Geography
The Georgia Depression is encompassed by the Pacific Ranges to the north, Vancouver Island Ranges and Olympic Mountains to the west, and North Cascades to the east  The depression includes the Fraser Lowland, Nanaimo and Nahwitti lowlands of Vancouver Island, Puget Sound basin, and all the islands and adjoining waterways of the Salish Sea The majority of the population of British Columbia and Washington reside within this depression 

Geology
The landscape features glacially striated tablelands and rolling hills underlain by sedimentary rocks  The majority of soils in the depression are formed from glacial till, glacial outwash, and Lacustrine deposits 

Ecology
Much of the Georgia Depression is dry, flat, and at low elevation relative to the surrounding highlands  As such, a wide diversity of flora and fauna thrive within the depression Human activity has greatly altered much of the natural environment here through industrialization, agriculture, forestry, urbanization, and suburban sprawl 

See also
List of physiogeographic regions of British Columbia
Royal eponyms in Canada
Passage 4:
Steel Venom (Valleyfair)
Steel Venom is an inverted launched roller coaster located at Valleyfair amusement park in Shakopee, Minnesota, United States  The Impulse Coaster model from Intamin, which opened in 2003, reaches a height of 185 feet (56 m) and a maximum speed of 68 mph (109 km/h) 

History
Valleyfair unveiled Steel Venom in September 2002, a new roller coaster for the 2003 season manufactured by Intamin  It is an Impulse Coaster model, compact by design, and is also both Valleyfair’s and Minnesota’s first and only launch coaster  Steel Venom opened to the public on May 17, 2003 

Ride description
The coaster's single seven-car (28-passenger) train runs along a 200 m (656 ft) U-shaped track, incorporating two 185-foot (56 m) vertical spikes   The forward spike incorporates a twisted spiral, and the rearward spike provides a straight freefall   The 20 m (65 ft) train, propelled by linear induction motors (LIMs,) is accelerated in less than four seconds to 68 mph (109 km/h) toward the forward tower before dropping back down through the station house and up the rearward tower   A holding brake is incorporated on the rear straight tower and is able to suspend the train momentarily (usually on the final ascent during each ride) before dropping it back down to the station house 
Passage 5:
Alouette Lake
Alouette Lake, originally Lillooet Lake and not to be confused with the lake of that name farther north, is a lake and reservoir in Maple Ridge, British Columbia, Canada  It is located at the southeast foot of the mountain group known as the Golden Ears and is about 16 km in length on a northeast–southwest axis   It and the Alouette River, formerly the Lillooet River, were renamed in 1914 to avoid confusion with the larger river and lake farther north, with "Alouette", the French word for "lark", being chosen as being melodious and reminiscent of the original name in tone 
Most of the basin of Alouette Lake has never been logged and its north flank is protected as part of Golden Ears Provincial Park (formerly part of Garibaldi Provincial Park until that park's division)  A small portion of the lake and its largely inaccessible northwestern shore, near its narrows, are actually part of the District of Mission due to the rectangular shape of that district's boundary   North of the portion of the lake that is in Mission, the rest of its northern end is not in either municipality 

Alouette Dam
Originally only 2 km in length, the lake was considerably expanded by the 1928 construction of the Alouette Dam at 49°17′10″N 122°29′12″W, which is 11 5 km (7 mi) along the upper reaches of the South Alouette River  A 1,067 m (3,501 ft) long tunnel connects Alouette Lake and Stave Lake  At the end of the tunnel is a penstock which feeds the small Alouette Powerhouse, an 8 MW power station operated by BC Hydro, which lies midway along the west shore of Stave Lake 49°22′16″N 122°18′47″W There is no powerhouse at the dam, however, as the point of the reservoir is to feed the tunnel through the flank of the ridge between Mounts Crickmer and Robie Reid  A former railway grade leading to the dam along the river was also used as a logging railway 

Facilities
A large public beach, picnic site and campground that are part of the provincial park are located on the lake's western shore 
Passage 6:
Excalibur (Valleyfair)
Excalibur  is a steel roller coaster with a wooden structure located at Valleyfair in Shakopee, Minnesota  It was built in 1989 by Arrow Dynamics, for the cost of $3,000,000  The ride is 105 feet (32 m) tall with a top speed of 54 5 mph (87 7 km/h) and has a minimum height requirement of 48 inches  It follows a customized figure-eight track layout and is rather short for a major roller coaster, with a total ride duration of two minutes and thirteen seconds A few years after the ride was built, trim brakes were added at the top of the first hill  The bottom and first half of the turn were re-profiled in an attempt to reduce roughness  The photo spot and the "Excalibur Photos" booth were also removed  The photo booth was replaced with a Refreshment stand, which has also been removed 

Potential closure
Valleyfair has applied for a permit with the US Army Corps of Engineers that includes the removal of Excalibur to be replaced by a road and parking lot 
"APPLICATION FOR PERMIT TO discharge dredged and fill material into 4 52 acres of wetland for the purpose of constructing a new road around the park for employee access and for the construction of a new parking lot  The Valleyfair expansion project includes a proposed road relocation that will be used by park guests and primarily park employees to access nonpublic areas of the park and two parking areas, one for guests and one for staff "
Passage 7:
Bobo people
The Bobo are a Mande ethnic group living primarily in Burkina Faso, with some living north in Mali  Bobo is also a shortened name of the second-largest city in Burkina Faso, Bobo-Dioulasso 

Background
In much of the literature on African art, the group that lives in the area of Bobo-Dioulasso is called Bobo-Fing, literally "black Bobo"  These people call themselves Bobo and speak the Bobo language, a Mande language  The Bambara people also call another ethnic group "Bobo", the Bobo-Oule/Wule, more precisely called the Bwa  While the Bwa (Bobo-Oule) are a Gur people, speaking Gur languages (the Bwa languages), the true Bobo (Bobo Madare, Bobo Fing) are a Mande people 

Demographics
The Bobo number about 110,000 people, with the great majority in Burkina Faso  The major Bobo community in the south is Bobo-Dioulasso, the second-largest city of Burkina Faso and the old French colonial capital  Further north are large towns, including Fô and Kouka, with Boura in the extreme north in Mali 
The Bobo are far from homogeneous  They are an ancient aggregation of several peoples who have assembled around a number of core clans that do not preserve any oral traditions of immigration into the area  Their language and culture are more closely related to those of their Mandé neighbours to the north and west, the Bamana (as well as the Minianka, also known as Mamara Senoufo, and a Gur people) than to their Voltaic neighbours the Gurunsi and Mossi, but they should be thought of as a southern extension of the Mandé people who live in what is now Burkina Faso, rather than an intrusive Mandé group that has recently penetrated the region  Although over 41% of Bobo lineages claim a foreign origin, they also say that they are autochthonous 

Economy
Farming among the Bobo is of primary importance  Agricultural activity is not merely a way of providing for subsistence among the Bobo, it is the essential component of their day-to-day existence  The major food crops are red sorghum, pearl millet, yams, and maize  They also cultivate cotton, which is sold to textile mills in Koudougou  The imposition of colonial rule and the construction of these mills led to the disintegration of the local co-operative labor systems, which had served to bond the members of Bobo society together 

Political system
The Bobo lineage is the fundamental social building-block  The Bobo are an inherently decentralized group of people  The concept of placing political power in the hands of an individual is foreign to the Bobo  Each village is organized according to the relationship among individual patriline  The lineage unites all descendants of a common ancestor, called the wakoma, a word whose stem, wa-, is a contraction of the Bobo word for house wasa  The Bobo lineage comprises the people who live in a common house  The head of a lineage is called the wakoma or father of the lineage  He may also be called the sapro, which is the term for ancestors  As among other peoples in Burkina, each clan has a totem, so that when a Bobo introduces himself he gives his given name, then his clan name, followed by the totem that he respects 

Religion
The creator god is called Wuro  He cannot be described and is not represented by sculptures  Bobo cosmogony describes the creation of the world by Wuro and the ordering of his creations  He is responsible for the ordering of all things in the world into opposing pairs: man/spirits, male/female, village/bush, culture/nature and so on 
The balances between forces as they were created by Wuro are precarious, and it is easy for men to throw the forces out of balance  Farming, for instance, can unbalance the precarious equilibrium between culture/nature and village/bush when the crops are gathered in the bush and brought into the village 
For the Bobo people there are two important epochs  The time of Wuro, when the universe was created and the historical time, when Wuro gave man his son Dwo 

Sources
Christopher Roy: Art of the Upper Volta Rivers  Traduction et adaptation en francais F Chaffin  Alain et Françoise Chaffin, Meudon, 1987
Guy Le Moal : Les Bobo  Nature et fonction des masques  Musée royale de l'Afrique centrale, Tervuren, 1999 

External links

The Art of Burkina Faso by Christopher D  Roy
Passage 8:
Eureka, Nunavut
Eureka is a small research base on Fosheim Peninsula, Ellesmere Island, Qikiqtaaluk Region, in the Canadian territory of Nunavut  It is located on the north side of Slidre Fiord, which enters Eureka Sound farther west  It is the third-northernmost permanent research community in the world   The only two farther north are Alert, which is also on Ellesmere Island, and Nord, in Greenland   Eureka has the lowest average annual temperature and the lowest amount of precipitation of any weather station in Canada 
Eureka's postal code is X0A 0G0 and the area code is 867 

Divisions
The base consists of three areas:

the Eureka Aerodrome which includes "Fort Eureka" (the quarters for military personnel maintaining the island's communications equipment)
the Environment and Climate Change Canada Weather Station
the Polar Environment Atmospheric Research Laboratory (PEARL), formerly the Arctic Stratospheric Ozone Observatory (AStrO)PEARL is operated by a consortium of Canadian university researchers and government agencies known as the Canadian Network for Detection of Atmospheric Change  PEARL announced it would cease full-time year-round operation as of April 30, 2012, due to lack of funding, but this decision was reversed in May 2013 with the announcement of new funds 

History
Eureka was founded on April 7, 1947, as part of an initiative to set up a network of Arctic weather stations  On this date, 100 t (98 long tons; 110 short tons) of supplies were airlifted to a promising spot on Ellesmere Island, and five prefabricated Jamesway huts were constructed  Regular weather observations began on January 1, 1948  The station has expanded over the years  At its peak, in the 1970s, at least fifteen staff were on site; in 2005, it reported a permanent population of zero with at least 8 staff on a continuous rotational basis Several generations of buildings have been developed  The latest operations centre, with work areas and staff quarters in one large structure, was completed in 2005 

Location and accessibility
The complex is powered by diesel generators  The station is supplied once every six weeks with fresh food and mail by air, and annually in the late summer, a supply ship from Montreal brings heavy supplies  On July 3, 2009, a Danish Challenger 604 MMA jet landed at Eureka's aerodrome 
The jet is a military observation aircraft based on the Challenger executive jet  This jet visited Eureka on a familiarization trip, in order to prepare for the possibility of Danish aircraft assisting in search and rescue missions over Canadian territory  The Canadian American Strategic Review noted critically that the first jet to fly a mission to Eureka was not Canadian At Eureka's latitude, a geosynchronous communications satellite, if due south, would require an antenna to be pointed nearly horizontally; satellites farther east or west along that orbit would be below the horizon  Telephone access and television broadcasts arrived in 1982 when Operation Hurricane resulted in the establishment of a satellite receiving station at nearby Skull Point, which has an open view to the south  The low-power Channel 9 TV transmitter at Skull Point was the world's most northern TV station at the time  In the 1980s, TV audio was often connected to the telephone to feed CBC-TV news to CHAR-FM in isolated CFS Alert  More recently, CANDAC has installed what is likely the world's most northerly geosynchronous satellite ground-station to provide Internet-based communications to PEARL Other inhabited places on Ellesmere Island include Alert and Grise Fiord 

Flora and fauna
Eureka has been described as "The Garden Spot of the Arctic" due to the flora and fauna abundant around the Eureka area, more so than anywhere else in the High Arctic  Fauna include muskox, Arctic wolves, Arctic foxes, Arctic hares, and lemmings  In addition, summer nesting geese, ducks, owls, loons, ravens, gulls and many other smaller birds nest, raise their young, and return south in August 

Climate
Eureka experiences a polar climate (ET)  The settlement sees the midnight sun between April 10 and August 29, with no sunlight at all between mid-October and late February  Eureka has the lowest average annual temperature and least precipitation of any weather station in Canada with an annual mean temperature of −18 8 °C (−1 8 °F)  Average winter temperatures are almost comparable to those found in northeastern Siberia  However, summers are slightly warmer than other places in the Canadian Arctic because Eureka is somewhat landlocked, being near the centre of Ellesmere Island  Even so, since record keeping began, the temperature has never exceeded 20 9 °C (69 6 °F), first reached on July 14, 2009  Although a polar desert, evaporation is also very low, which allows the limited moisture to be made available for plants and wildlife  Its frost-free  season averages 56 days, much longer than many other places nearby 

See also
List of research stations in the Arctic
Passage 9:
Battle of White Plains
The Battle of White Plains was a battle in the New York and New Jersey campaign of the American Revolutionary War, fought on October 28, 1776, near White Plains, New York   Following the retreat of George Washington's Continental Army northward from New York City, British General William Howe landed troops in Westchester County, intending to cut off Washington's escape route   Alerted to this move, Washington retreated farther, establishing a position in the village of White Plains but failed to establish firm control over local high ground   Howe's troops drove Washington's troops from a hill near the village; following this loss, Washington ordered the Americans to retreat farther north 
Later British movements chased Washington across New Jersey and into Pennsylvania   Washington then crossed the Delaware and surprised a brigade of Hessian troops in the December 26 Battle of Trenton 

Background
British General William Howe, after evacuating Boston in March 1776, regrouped in Halifax, Nova Scotia, and embarked in June on a campaign to gain control of New York City   The campaign began with an unopposed landing on Staten Island in early July  British troops made another unopposed landing on Long Island on August 22, south of the areas where General George Washington's Continental Army had organized significant defenses around Brooklyn Heights After losing the Battle of Long Island on August 27, General Washington and his army of 9,000 troops escaped on the night of August 29–30 to York Island (as Manhattan was then called)   General Howe followed up with a landing on Manhattan on September 15, but his advance was checked the next day at Harlem Heights   After an abortive landing at Throg's Neck, he landed troops with some resistance at Pell's Point on October 18 to begin an encircling maneuver that was intended to trap Washington's army between that force, his troops in Manhattan, and the Hudson River, which was dominated by warships of the Royal Navy   Howe established a camp at New Rochelle, but advance elements of his army were near Mamaroneck, only 7 miles (11 km) from White Plains, where there was a lightly defended Continental Army supply depot 

Prelude
On October 20, General Washington sent Colonel Rufus Putnam out on a reconnaissance mission from his camp at Harlem Heights   Putnam discovered the general placement of the British troop locations and recognized the danger to the army and its supplies   When he reported this to Washington that evening, Washington immediately dispatched Putnam with orders to Lord Stirling, whose troops were furthest north, to immediately march to White Plains   They arrived at White Plains at 9 am on October 21, and were followed by other units of the army as the day progressed   Washington decided to withdraw most of the army to White Plains, leaving a garrison of 1,200 men under Nathanael Greene to defend Fort Washington on Manhattan   General Howe's army advanced slowly, with troops from his center and right moving along the road from New Rochelle to White Plains, while a unit of Loyalists occupied Mamaroneck   The latter was attacked that night by a detachment of Lord Stirling's troops under John Haslet, who took more than thirty prisoners as well as supplies, but suffered several killed and 15 wounded   As a result, Howe moved elements of his right wing to occupy Mamaroneck   On October 22, Howe was reinforced by the landing at New Rochelle of an additional 8,000 troops under the command of Wilhelm von Knyphausen 
Washington established his headquarters at the Elijah Miller House in North White Plains on October 23, and chose a defensive position that he fortified with two lines of entrenchments  The trenches were situated on raised terrain, protected on the right by the swampy ground near the Bronx River, with steeper hills further back as a place of retreat  The American defenses were 3 miles (4 8 km) long  Beyond that, on the right, was Chatterton's Hill, which commanded the plain over which the British would have to advance  The hill was initially occupied by militia companies numbering several hundred, probably including John Brooks' Massachusetts militia company On October 24 and 25, Howe's army moved from New Rochelle to Scarsdale, where they established a camp covering the eastern bank of the Bronx River   This move was apparently made in the hopes of catching Charles Lee's column, which had to alter its route toward White Plains and execute a forced march at night to avoid them   Howe remained at Scarsdale until the morning of October 28, when his forces marched toward White Plains, with British troops on the right under General Henry Clinton, and primarily Hessian troops on the left under General von Heister 

Composition of forces
British & Hessians
British
British troops involved included:
16th Regiment of (Light) Dragoons
17th Regiment of (Light) Dragoons
1st Battalion, Guards Brigade
2nd Battalion, Guards Brigade
5th Regiment of Foot (Northumberland Fusiliers)
23rd Regiment of Foot (Royal Welsh Fusiliers)
27th Regiment of Foot
28th Regiment of Foot
35th Regiment of Foot
42nd (Royal Highland, The Black Watch) Regiment of Foot
49th Regiment of Foot
52nd Regiment of Foot
No 1 Company, 4th Battalion, Royal Artillery
No 2 Company, 4th Battalion, Royal Artillery
No 4 Company, 4th Battalion, Royal Artillery (Specially thanked in General Orders)
No 5 Company, 4th Battalion, Royal Artillery (Thanked in General Orders)
No 8 Company, 4th Battalion, Royal Artillery (Thanked in General Orders)Hessians

Grenadier Regiment von Rahl
Fusilier Regiment von Knyphausen

Americans
American (continental) forces in the battle included:
Spencer's Division
Parson's Brigade under Brigadier General Samuel Holden Parsons
10th Continental Regiment (6th Connecticut)
20th Continental Regiment (20th Connecticut)
21st Continental Regiment (Ward's Militia)
Wadsworth's Brigade under Brigadier General James Wadsworth
Gay's Battalion
Douglas' Battalion
Delaware Regiment
1st New York Regiment
3rd New York Regiment
Maryland Regiment
Connecticut Regiment
Brook's New York Militia
Graham's Massachusetts Militia

Battle
While Washington was inspecting the terrain to determine where it was best to station his troops, messengers alerted him that the British were advancing  Returning to his headquarters, he ordered the 2nd Connecticut Regiment under Joseph Spencer out to slow the British advance, and sent Haslet and the 1st Delaware Regiment, along with Alexander McDougall's brigade (Rudolphus Ritzema's 3rd New York Regiment, Charles Webb's 19th Continental Regiment, William Smallwood's 1st Maryland Regiment, and the 1st New York Regiment and 2nd New York Regiments) to reinforce Chatterton Hill Spencer's force advanced to a position on the old York road at Hart's corners (Hartsdale, New York) and there exchanged fire with the Hessians led by Colonel Johann Rall that were at the head of the British left column   When Clinton's column threatened their flank, these companies were forced into a retreat across the Bronx River that was initially orderly with pauses to fire from behind stone walls while fire from the troops on Chatterton Hill covered their move, but turned into a rout with the appearance of dragoons   Rall's troops attempted to gain the hill, but were repelled by fire from Haslet's troops and the militia, and retreated to a nearby hilltop on the same side of the river   This concerted defense brought the entire British Army, which was maneuvering as if to attack the entire American line, to a stop While Howe and his command conferred, the Hessian artillery on the left opened fire on the hilltop position, where they succeeded in driving the militia into a panicked retreat   The arrival of McDougall and his brigade helped to rally them, and a defensive line was established, with the militia on the right and the Continentals arrayed along the top of the hill   Howe finally issued orders, and while most of his army waited, a detachment of British and Hessian troops was sent to take the hill The British attack was organized with Hessian regiments leading the assault   Rall was to charge the American right, while a Hessian battalion under Colonel Carl von Donop (consisting of the Linsing, Mingerode, Lengereck, and Kochler grenadiers, and Donop's own chasseur regiment) was to attack the center  A British column under General Alexander Leslie (consisting of the 5th, 28th, 35th, and 49th Foot) was to attack the right   Donop's force either had difficulty crossing the river, or was reluctant to do so, and elements of the British force were the first to cross the river   Rall's charge scattered the militia on the American right, leaving the flank of the Maryland and New York regiments exposed as they poured musket fire onto the British attackers, which temporarily halted the British advance   The exposure of their flank caused them to begin a fighting retreat, which progressively forced the remainder of the American line, which had engaged with the other segments of the British force, to give way and retreat   Haslet's Delaware regiment, which anchored the American left, provided covering fire while the remaining troops retreated to the north, and were the last to leave the hill   The fighting was intense, and both sides suffered significant casualties before the Continentals made a disciplined retreat 

Casualties
John Fortescue's History of the British Army says that Howe's casualties numbered 214 British and 99 Hessians  However, Rodney Atwood points out that Fortescue's figure for the Hessians includes the entire Hessian casualties from 19–28 October and that in fact only 53 of these casualties were incurred at the Battle of White Plains  This revised figure would give a total of 267 British and Hessians killed, wounded or missing at White Plains  Henry Dawson, on the other hand, gives Howe's loss as 47 killed, 182 wounded and 4 missing 
The American loss is uncertain  Theodore Savas and J  David Dameron give a range of 150–500 killed, wounded and captured  Samuel Roads numbers the casualties of 47 killed and 70 wounded  Henry Dawson estimates 50 killed, 150 wounded and 17 missing for McDougall's and Spencer's commands but has no information on the losses in Haslet's regiment 

Aftermath
The two generals remained where they were for two days, while Howe reinforced the position on Chatterton Hill, and Washington organized his army for retreat into the hills   With the arrival of additional Hessian and Waldeck troops under Lord Percy on October 30, Howe planned to act against the Americans the following day   However, a heavy rain fell the whole next day, and when Howe was finally prepared to act, he awoke to find that Washington had again eluded his grasp Washington withdrew his army into the hills to the north on the night of October 31, establishing a camp near North Castle   Howe chose not to follow, instead attempting without success to draw Washington out   On November 5, he turned his army south to finish evicting Continental Army troops from Manhattan, a task he accomplished with the November 16 Battle of Fort Washington Washington eventually crossed the Hudson River at Peekskill with most of his army, leaving New England regiments behind to guard supply stores and important river crossings   Later, British movements chased him across New Jersey and into Pennsylvania, and the British established a chain of outposts across New Jersey  Washington, seeing an opportunity for a victory to boost the nation's morale,  crossed the Delaware and surprised Rall's troops in the December 26 Battle of Trenton 

Legacy
Each year on or near the anniversary date, the White Plains Historical Society hosts a commemoration of the event at the Jacob Purdy House in White Plains, New York   Two ships in the United States Navy were named for the Battle of White Plains  CVE-66 was an escort carrier in World War II  AFS-4 was a combat stores ship that was decommissioned in 1995 According to some historians, the Headless Horseman depicted in Washington Irving's short story "The Legend of Sleepy Hollow" was inspired by a real-life Hessian soldier who lost his head by cannon fire during this battle 

See also
List of American Revolutionary War battles
American Revolutionary War §British New York counter-offensive  The 'Battle of White Plains' placed in overall sequence and strategic context 

Notes
Bibliography
Major Francis Duncan, History of the Royal Regiment of Artillery, Volume II, 1873 London John Murray 
Fischer, David Hackett (2004)  Washington's Crossing  New York: Oxford University Press  ISBN 978-0-19-517034-4  OCLC 186017328 
Digby Smith, Kevin E  Kiley, and Jeremy Black, An Illustrated Encyclopedia of Uniforms of the American War of Independence, 2017 Lorenz Books, London, United Kingdom  ISBN 978-0-7548-1761-1 

External links

The Battle of White Plains
White Plains Historical Society
Passage 10:
Wicked Twister
Wicked Twister was an inverted roller coaster located at Cedar Point amusement park in Sandusky, Ohio, United States  Designed by Werner Stengel, it was a second-generation, double-twisting Impulse model manufactured by Intamin  Wicked Twister opened as the tallest and fastest inverted coaster in the world on May 5, 2002  It was retired by the park on September 6, 2021, closed on September 7, and gave over 16 million rides during its lifetime 

History
Construction on Wicked Twister began on October 15, 2001, shortly after Stadium Games, formerly known as the Aquarium, was razed  The new coaster was officially announced the following month, and its media day was held on May 2, 2002 Billed as the tallest and fastest double-twisting impulse coaster ever built, Wicked Twister actually opened as the tallest and fastest inverted coaster in the world on May 5, 2002  It held both records until the opening of Legendary Twin Dragon at Chongqing Sunac Land in China in 2021  Additional supports were added to the ride's structure for the 2003 season  Two yellow supports were added to each spike to connect the track to the top of the main support structure 

In May 2021, park official Tony Clark implied in a series of tweets that Wicked Twister was going to be retired  This was confirmed on August 6, 2021, when Cedar Point officially announced the closure of Wicked Twister, scheduled for September 6, 2021  The ride then closed September 7, and on its last day of operation, park employees handed out "last launch" buttons to riders, sold limited-edition commemorative t-shirts, and gave away 16 "golden tickets" granting winners a spot on the last public train  Wicked Twister had accumulated over 16 million rides in 20 seasons of operation On November 3, 2021, Cedar Point announced that Wicked Twister would be demolished  Demolition and removal was completed on February 8, 2022 

Ride details
Wicked Twister consisted of two 215 feet (66 m) tall spikes  Both ends of the track were designed with 450-degree vertical twists, referred to as the front and rear towers, which differentiated Wicked Twister from other Impulse Coaster models from Intamin  The loading platform and linear induction motor (LIM) propulsion system sat between the two towers along a horizontal track section  The ride was built directly on Cedar Point Beach, and its entrance plaza was located in the former Aquarium location  The track was painted yellow with teal supports The ride featured one train that consisted of eight cars  Riders were arranged two across in two rows for a total of 32 riders  Wicked Twister's theme song was "The Winner" by the Crystal Method 

Layout
Linear induction motors propelled the train forward out of the station at 50 mph (80 km/h) during the first launch, which carried the train approximately halfway up the front tower  After coming to a stop, the train then fell and returned through the station, re-entering the LIM section and accelerating for a second launch to 63 mph (101 km/h) in the opposite direction  After climbing to its peak approximately halfway up the rear tower, the process would repeat a third time accelerating to 69 mph (111 km/h) and climbing to its highest point on the front tower 
A fourth and final LIM launch on the train's return through the station accelerated the train to its maximum speed of 72 mph (116 km/h), reaching a maximum height of 206 ft (63 m) up the rear tower  The train then made one more final pass through the station without any interaction from the LIM launch section and up the front spike  Subsequent passes through the station were met with the brakes being applied to slow the train slightly more each time until finally coming to rest 

See also
The Flash: Vertical Velocity – similar coaster located at Six Flags Great America
Possessed – similar coaster located at Dorney Park & Wildwater Kingdom
Steel Venom – similar coaster located at Valleyfair



ground_truth: Sun

prompt_front: Answer the question based on the given passages. Only give me the answer and do not output any other words.

Question: Which is farther north, Steel Venom or Wicked Twister?

The following are given passages.
Context 3: Passage 1:
Pamela B  Green
Pamela B  Green is a two-time Emmy-nominated, award-winning American film director and producer known for her work in feature film titles and motion graphics  She is the director, writer, editor and producer of the documentary Be Natural: The Untold Story of Alice Guy-Blaché  In 2020, she was awarded the Jane Mercer Researcher of the Year award at the FOCAL International awards for her work on Be Natural 

PIC Collective
In 2005, Green co-founded PIC Collective, an audiovisual communications studio focused on entertainment and motion design  PIC Collective designs and produces content for motion pictures, television, and commercials, and has done main title sequences for over 100 feature films and for every major Hollywood studio  Since PIC Collective's founding, Green has creative-directed and produced main titles and marketing campaigns for The Kingdom, Twilight, The Cabin in the Woods, The Muppets, 42, and numerous others, as well as TV show packages for the Academy Awards, the Billboard Awards, the Critics’ Choice Awards, and the mini-documentary sequences for VH1ʼs Soul Divas: History of Soul Music The title sequence for The Kingdom was honored with a place on the Independent Film Channel's list “The 50 Greatest Opening Title Sequences of All Time”  PIC Collective was also awarded a 2013 Key Art Award in Audio/Visual Technique for the titles of The Wolverine On November 21, 2019, PIC Collective won Silver for a Clio Award in the category best Audio Visual Technique in Motion Graphics 

Be Natural
In 2012, Green began working on Be Natural: The Untold Story of Alice Guy-Blaché, a feature-length documentary about the first female film director  Green produced, directed, wrote and edited the documentary with executive producer Robert Redford  In 2013, Green and her team raised over $200,000 via Kickstarter to further fund the documentary   
In addition, Green was a recipient of the Sundance Institute Documentary Fund  The film premiered in the Official Selection of Cannes Classics 2018 and then had its North American premiere at the Telluride Film Festival, followed by the Deauville American Film Festival, New York Film Festival, and the BFI London film Festival  It was acquired by Zeitgeist Films in association with Kino Lorber and was released in theaters in April 2019  The film was well-received by most critics, with Deadline's Pete Hammond calling it "the Best Film In Cannes" and Katie Walsh for the Los Angeles Times calling it "illuminating"  Be Natural was nominated by the Critics Choice Documentary Awards in the  Best First Documentary Category  Be Natural was recently awarded Best Documentary at the 2020 Vancouver International Women in Film Festival  On November 17, 2019, after a screening of the film at the Barrymore Film Center, the Fort Lee Film Commission awarded director Pamela B  Green with the Barrymore Film Center Alice Guy-Blaché Award and narrator Jodie Foster with the Barrymore Film Center Award 
Be Natural was nominated for five awards at the 2020 FOCAL International Awards and took home the prize for Best Use of Footage in a Cinematic Feature and the Jane Mercer Researcher of the Year Award 
In December, the film was named one of the 50 Best Films of 2020 in the UK by The Guardian  
Later in December, the film was named one of the 10 Best Documentaries in Peter Bradshaw's film picks of 2020 In 2021, Be Natural was nominated for a Peabody Award 

Legwork Collective
In 2018, Green founded Legwork Collective, a media company that focuses on telling inspiring and moving scripted and unscripted stories that bring overlooked figures to the forefront via film, television, and audio In 2020, Legwork Collective received a grant from The Redford Center to direct a nonpartisan Public Service Announcement encouraging young people to Take Action and Vote!

Filmmaker
Green directed the 2008 short Compact Only, which was nominated for Best Short at the Milan International Film Festival, for the Audience Award in the Fresno Film Festival, Best Short at the Beverly Hills Shorts Festival, and for the Best Short at The Int'l Fest of Cinema and Technology  The film won Best Short at the Tallahassee Film Festival, Best Short at the Treasure Coast International Film Festival, Accolade Film Award Winner, Best Comedy Short at the Gone With the Film Festival, Winner Aloha Accolade Award Honolulu, and much more 
Green was a co-producer on the 2010 documentary Bhutto about the 11th Prime Minister of Pakistan, Benazir Bhutto 
In 2011, Green directed the music video for The Click Five's song “Don’t Let Me Go”, which was created in partnership with MTV EXIT and featured a message to raise awareness about human trafficking 
In 2012, Green directed a commercial for Super-Max Razors which starred actor Gerard Butler In 2012, Bhutto was nominated for an Emmy for Outstanding Continuing Coverage of a News Story – Long Form In 2014, Green was included in Saul Bass's book Anatomy of Film Design, listing her as being part of a "wholly digitally trained generation of title designers "In 2014, Green was selected to serve as a juror for Excellence in Title Design category at the 2014 South by Southwest Film Festival In 2016, Green directed an Audi commercial 
In 2016, Green was selected to serve as a judge for The Motion Awards for motionographer com In 2018, Green's documentary Be Natural: The Untold Story of Alice Guy-Blaché premiered at Cannes 
In 2020, Green directed the nonpartisan PSA, Take Action and Vote! for the Redford Center In 2021, Green's documentary Be Natural: The Untold Story of Alice Guy-Blaché was nominated for a Peabody In 2021, Be Natural was nominated for an Emmy for Outstanding Research:Documentary Green is currently working with co-writer Joan Simon and co-producer Cosima Littlewood on a feature biopic script about the mother of cinema, Alice Guy-Blaché, which will feature new material not seen in the documentary Be Natural Green has also developed Aces Never Sleep, a female-driven detective series, with Jamie Wolf's Foothill Productions and former CAA agent John Ptak, and they are in talks with different financiers  The series takes place during a pandemic, social unrest, economic crisis, racism and a polarized America   Kate Warn and her team of lady operatives are behind the true origins of the Pinkerton Detective Agency, founded by fervent abolitionist Allan Pinkerton  Historical figures appear throughout the series, including Frederick Douglass and Abraham Lincoln, notably when the agency's most valued Ace Kate Warn and fellow detectives thwart an assassination attempt on the President-Elect 

Awards and accolades
Selected filmography
See also
Alice Guy-Blaché
Passage 2:
Anani ben Sason
Rabbi Anani ben Sason (Hebrew: רבי ענני בר ששון; also called 'Anani, 'Inani, and 'Inyani) was a Jewish Talmudist who lived in the Land of Israel in the third century (third generation of amoraim) 

Teachings
He was a contemporary of Rabbi Ammi  He rarely discussed Halakhot, and his discussions of them were not original  Once he recited a Halakhah in the patriarch's mansion, without naming its author, which provoked Ammi to ask: "Is it his own? It is what Rabbi Eleazar had reported in the name of Rabbi Oshaiah" In aggadah, he sometimes reported the sayings of others, but more often he was original  Thus, to explain the juxtaposition of the laws of sacrifice and priestly vestments, he argues that the priestly vestments were to provide atonement just as the sacrifices do  He represents the miter as atoning for haughtiness, and cites R  Chanina as saying, "That which rests highest on the priest atones for one's considering himself high"; and similarly with the rest of the priestly garments Referring to God's appearance in the burning bush he remarks, "The Holy One—blessed be He!—said to Moses, 'When I will it, one of my angels stretches forth his hand from heaven and reaches to the ground,' as Scripture says, 'He put forth the form of a hand, and took me by a lock of my head'; and when it so pleases me, I make three angels sit under one tree; when I choose, my glory fills the universe, as it is written, 'Do I not fill heaven and earth? says the Lord'; and when I so willed, I spoke to Job in a whirlwind, as it is said "The Lord answered Job out of the whirlwind"" The same idea, though in different form, is found elsewhere in the name of R  Chanina b  Issi (Sissi)  As the name of the subject of this article is sometimes written 'Inani and also 'Inyani—which forms are dialectic variations of Chanina, though with the initial aleph instead of ayin—the circumstance probably suggested the identity of the two names  But this identification meets with insuperable chronological difficulties, Chanina b  Sissi being a contemporary of Johanan, while 'Anani was younger even than Johanan's pupils 
Isaac Reichlin aptly suggests that Anani's real name was Ananiel, as it is still preserved in Exodus Rabbah 3:7, and that its apocopated form was adopted to avoid the mention of the name "El" (God) in common speech 
Passage 3:
Lev Yilmaz
Levni Yilmaz (born 1973) is an American independent film maker, artist and publisher, best known for his "Tales of Mere Existence" animated comic series  He is based in San Francisco 

Early life
Yilmaz was born in Boston, Massachusetts to parents Karen Carlson and physicist Hüseyin Yılmaz (the author of the Yilmaz theory of gravitation)  He is of Turkish and Swedish descent He attended art school in Boston before he moved to San Francisco in 1998 

Tales of Mere Existence
The "Tales of Mere Existence" series began in 2002 as a series of animated comics that were shown at film festivals 
Each video in the "Tales of Mere Existence" series shows a series of static cartoons, which appear gradually as if being drawn by an invisible hand   Yilmaz' technique is inspired by the French documentary The Mystery of Picasso (1956), which similarly shows Picasso's paintings appearing from the other side 
Yilmaz writes, draws, films, edits, and narrates all of the "Tales of Mere Existence" videos  He often recounts personal anecdotes and observations and discusses his views on interpersonal relationships, society and human behavior  His videos are told from a rather pessimistic viewpoint and  tend to have a sarcastic undertone 
In 2003, Yilmaz began to sell DVDs that contained some of his short comic films  Along with the DVD came the first print version of the "Tales of Mere Existence" book  Over the next six years, Yilmaz published three more books, as his fan base grew to thousands  His first official book, Sunny Side Down, was published by Simon & Schuster in 2009 

Popularity
In recent years Yilmaz gained a large fan base with millions of followers around his animated comics on YouTube  He uses this online popularity to promote his books and DVDs, which are sold from his personal website  
Yilmaz has made appearances in New York for events such as Rooftop Film Festival, performing live readings from his books 
In October 2010, his comic God was featured on Franco-German TV Network arte  In December 2010 A Few of My High School Teachers  aired on Showtime 

Publications
Tales of Mere ExistenceTales of Mere Existence I (2003)
Tales of Mere Existence II (2004)
The 7 Habits of Highly Negative People (2006)
Sunny Side Down (2009)
The Doom Room (2013)
Passage 4:
AES+F
AES+F is a collective of four Russian artists: Tatiana Arzamasova (born 1955), Lev Evzovich (born 1958), Evgeny Svyatsky (born 1957), and Vladimir Fridkes (born 1956)  It was first formed as AES Group in 1987 by Arzamasova, Evzovich, and Svyatsky, becoming AES+F when Fridkes joined in 1995  The collective works in photography, video, installation, and animation, as well as more traditional media, such as painting, drawing, and sculpture  AES+F's early work included performance, installation, painting, and illustration  Well known for their monumental video-art installations that Gareth Harris describes as "monumental painting set in motion", AES+F create grand visual narratives that explore contemporary global values, vices and conflicts 

Members
Tatiana Arzamasova
Tatiana Arzamasova was born in 1955 in Moscow, where she graduated from Moscow Architectural Institute (MArchI) – State Academy in 1978  Prior to founding AES Group, Arzamasova was a conceptual architect  She participated in conceptual architecture exhibitions in London, Paris, and Venice 

Lev Evzovich
Evzovich was born in 1958 in Moscow, where he graduated from Moscow Architectural Institute (MARCHI) – State Academy in 1982  Prior to founding AES Group, Evzovich also worked in conceptual architecture  He participated in conceptual architecture exhibitions in Milan, Frankfurt-on-Main, and Paris  He also worked as an art director in film 

Evgeny Svyatsky
Evgeny Svyatsky was born in 1957 in Moscow, where he graduated from the Moscow University of Print Design in 1980  Prior to founding AES Group, Svyatsky worked in book illustration, advertising, and graphic design  He also worked as the creative director for publishing houses in Moscow 

Vladimir Fridkes
Vladimir Fridkes was born in Moscow in 1956, where he worked as a fashion photographer prior to joining the collective  His work was published in many leading fashion magazines: VOGUE, Harper's Bazaar, ELLE, Marie Claire, Cosmopolitan and the Sunday Times Style 

Career
AES+F began their career as AES Group, with Arzamasova, Evzovich, and Svyatsky forming the group in 1987  The collective exhibited internationally for the first time in 1989 with a solo show at Howard Yezerski Gallery in Boston, and a performance at the Carpenter Center at Harvard University in Cambridge  The group expanded with the addition of the photographer Vladimir Fridkes in 1995 and subsequently changed its name to AES+F  
The collective achieved wider recognition in the Russian Pavilion at the 52nd Biennale di Venezia in 2007 with Last Riot (2007), the first in a trilogy of large-scale, multi-channel video installations  The second of the series, The Feast of Trimalchio (2009), appeared in Venice in 2009, and the third, Allegoria Sacra (2011), debuted at the 4th Moscow Biennale in 2011  Together, all three projects premiered as The Liminal Space Trilogy in September 2012 at the Martin-Gropius-Bau, Berlin, and the Moscow Manege, the central exhibition hall of the artists’ home city  The Trilogy was shown in the Museum of Fine Arts in La Chaux-de-Fonds, Switzerland (June–September 2014)  Most recently all three videos were shown at Albright–Knox Art Gallery, Buffalo, NY (June–September 2015) AES+F have exhibited at numerous international festivals: (namely the biennales of Venice, Lyon, Sydney, Gwangju, Moscow, Gothenburg, Havana, Tirana, Istanbul, Bratislava, Seoul etc ), ARS-06 (KIASMA, Helsinki)  Their works appear in some of the world's most important collections, such as Moderna Museet (Stockholm), Musée de l'Elysée (Lausanne), MOCAK (Kraków), Sammlung Goetz (Munich), ZKM (Karlsruhe), Maison européenne de la photographie (Paris), Art Gallery of South Australia (Adelaide), and the Museum of Old and New Art (Tasmania), Centro de Arte Dos de Mayo (Madrid), Centre Georges Pompidou (Paris), and the Louis Vuitton Foundation (Paris)  Their work is represented in some of Russia's principal national museums, such as Tretyakov Gallery (Moscow), Russian Museum (St  Petersburg), and the Multimedia Art Museum (Moscow) AES+F's project Inverso Mundus was presented at the 56th Venice Biennale as a collateral event at the Magazzini del Sale and later presented at COME ALIVE (Niet Normaal INT) in Het Nieuwe Muntgebouw, Utrecht, The Netherlands On 22 April 2022, they publicly denounced the Russian invasion of Ukraine, declaring "The Putin regime continues to commit war crimes, destroying Ukrainian cities, killing thousands of people, depriving millions of their homes, families and futures"  They thus called for people to donate to NGO charities helping war refugees 

Works
Islamic Project (1996-2003)
Islamic Project began in 1996 as a performance and public intervention  AES+F created the "AES Travel Agency to the Future," an imitation of a travel office with subversive materials - souvenirs from a future in which the influence of Islam has been superimposed upon all of Western culture in the form of architectural and cultural transformations  In one of the images, the artists transformed the Statue of Liberty to show her in a Burka, holding a Quran; in another, they prophetically depict the New York skyline absent of the Twin Towers  The project has been met with attempts to censor certain imagery when it was shown in the New Art Gallery in Walsall, United Kingdom in 2006 In 2000, AES+F created another installation in the form of a Bedouin tent titled "Oasis", consisting of a series of traditional carpets, each with imagery from the Islamic Project printed on silk in the center " Oasis was first exhibited at the La Caixa Foundation in Barcelona, Spain 

King of the Forest (2001-2003)
The King of the Forest is a trilogy of projects inspired by Erlkönig, the Ogre - a mythological creature of medieval Europe and also the subject of an eponymous novel by Michele Tournier  The King of the Forest stole beautiful children from nearby villages and kept them in his palace  According to AES+F, this series of projects concerns itself with the theft of youth by mass media culture - a contemporary analogue to the medieval Ogre In AES+F's King of the Forest, the artists created three videos on different continents - Le Roi des Aulnes in St  Petersburg, More than Paradise in Cairo, and KFNY in New York  The first in the series, Le Roi des Aulnes, was shot at Catherine the Great's palace in Tsarskoye Selo  The second, More than Paradise, was shot at the Mosque of Muhammad Ali  The final project in the series, KFNY, was shot on Military Island in Times Square 

The Liminal Space Trilogy
The Liminal Space Trilogy attempts to analyze the 21st century from the perspective of a centuries-old art-historical tradition of depicting Hell, Heaven, and Purgatory  The trilogy is presented as three projects consisting of video installations, prints, drawings, paintings, and sculptures  It is set respectively in a video game landscape, an exotic luxury resort, and a futuristic airport, each of which is depicted as a unique surrealistic fantasy that explores contemporary themes 

Last Riot (2005-2007)
The project consists of an HD video installation (3- and 1-channel versions), series of stills from the video, series of pictures, series of drawings, series of sculptures
Last Riot premiered at the Russian pavilion at the Venice Biennale in 2007  The work depicts an imagined future digitally manipulated where snow-capped mountains sit next to desolate beaches, neon dragons rest atop oil platforms, planes collide without flames, and a band of attractive teens with completely ambiguous and detached facial expressions are engaged in ritualistic battle with one another and with themselves Conceived as a reflection of the 21st century, Last Riot raises questions regarding Western values, and reflects contemporary Western mythology without passing judgment  The visual ethos of Last Riot is rife with allusions to art history, from Caravaggio and Baroque painting, to Romanticism, combined with contemporary visual culture in the form of advertising, film, and video games, and traversing the aesthetic line between beauty and ugliness 

The Feast of Trimalchio (2009-2010)
The second project in the Liminal Space Trilogy, The Feast of Trimalchio, is titled as such in reference to the epic "Satyricon" by Gaius Petronius Arbiter, namely, the Cena Trimalchionis, which describes the life of a wealthy former slave who hosts gluttonous and orgiastic feasts  In AES+F's The Feast of Trimalchio, an imaginary island with an absurdly luxurious resort-hotel, which is a de-personification of Petronius' Trimalchio, serves as a "temporary paradise" that guests pay to enter   The guests of the hotel indulge in all of the contemporary pleasures perpetuated in advertisements of resort getaways, from leisurely fitness to "body purification," while the viewer sees any notion of social hierarchy dissipate as the masters begin to court the servants, acting out their fantasies of a Roman Saturnalia The project consists of an HD video installation (9-, 3-, and 1-channel versions), series of pictures, series of stills from the video, series of portfolios with photographs and drawings 

Allegoria Sacra (2011-2013)
The project consists of an HD video installation (5-, 3-, and 1-channel versions), series of pictures, series of stills from the video 
Allegoria Sacra is the final part of the Liminal Space Trilogy  Named after Giovanni Bellini's eponymous painting which hangs in the Uffizi Gallery, AES+F's Allegoria Sacra represents Purgatory  Taking place in a futuristic international airport, Allegoria Sacra serves as a metaphor for limbo, where the souls of "righteous sinners" await their fate  The characters that inhabit Giovanni Bellini's masterpiece, from biblical figures to mythological creatures, were transposed and sometimes reinterpreted by AES+F  The Saracen-Muslim was transformed into a group of refugees  St  Sebastian became a young, shirtless traveler, hitchhiking his way through tropical countries, while Apostle Paul is represented as an airport policeman  However, AES+F's piece is more of an allegory of contemporary life than a reinterpretation of Giovanni Bellini's painting  As the travelers enter dream-like states, the airport and the aircraft undergo several metamorphoses, while the landscape and the climate go through four phases - from being a snowy field to a desert, a jungle, and finally becoming an endless river Styx Maintaining their signature style, AES+F combine recognizable motifs from art-history and pop-culture, such as the numerous allusions to Stanley Kubrick's film 2001: A Space Odyssey  Allegoria Sacra weaves complex global issues into visually compelling metaphors, letting them unfold in the neutral transitory space of an airport, where all kinds of things can temporarily coexist before going to their destination 
Allegoria Sacra won the Sergey Kuryokhin Award (2011), the main award of the Kandinsky Prize (2012), the main award of the Nordart Festival (2014), and the Pino Pascali Prize (2015) (18th Edition) 
Passage 5:
Aryanto Yuniawan
Aryanto Yuniawan (born June 18, 1977 in Magelang; age 40) is Chief Executive Officer of PT Mataram Surya Visi Sinema, a multimedia and animation movie company located in Jogja Indonesia  Ary (his nickname) is best known as a director of Battle of Surabaya, the first 2D animation movie in Indonesia which got some awards i e  Gold Remi Award USA 2016, GrandPrize Winner of SICAF 2016 in South Korea, Winner of Nice International Filmmaker Festival 2017 in France,  Winner of Nioda International Film Festival in India and others  He is also acclaimed as a writer, a producer, and currently working on several articles and books related to his job and hobby  He started his career from directing and producing independent animation films including music videos  He was trusted to be one of the juries of several film festivals such as Festival Film Indonesia (FFI 2016), Noida International Film Festival (NIFF 2016), and Seoul International Cartoon and Animation Festival (SICAF 2017) 
Aryanto Yuniawan was chosen to be an individual recipient of the National Intellectual Property Award 2016 from the Directorate General of Intellectual Property, Ministry of Justice and Human Rights, Republic of Indonesia (DJKI Kemenkumham RI)  The award was submitted by Vice-president of the Republic of Indonesia (Vice-president), M  Jusuf Kalla to him with eight other recipients 

Education
Aryanto was born in Magelang, Central Java, Indonesia   He is the oldest of two siblings  After finishing the middle school from SMPN 2 Magelang and highschool from SMAN 1 Magelang, he studied at STMIK Amikom (now University Amikom) in Diploma degree   He gained his bachelor of computer science then and completed his master in the same university in 2017 

Filmography
As director
Battle of Surabaya (2015)
The Profesional (2012)
Petualangan Abdan (2011)
Goodbye World (2010)
Lestari (2010)
The Letter of Heaven (2010)
Jatayu (2009)
Lembah Halilintar (2009)

Achievements
Career
Lecturer at STMIK AMIKOM Yogyakarta
General manager of PT Mataram Surya Visi Pictures (2003-2014)
Chief executive Officer of PT Mataram Surya Visi Sinema (2014–Present)

Awards
Best Animation  The International Filmmaker Festival of World Cinema  2017  Nice, France 
Gold Remi Award  Houston International Film Festival  2016  Houston, Texas 
Grand Prize  Seoul International Cartoon and Animation Festival   2016  Seoul, Korea 
Best Animation  Noida International Film Festival  2016  New Delhi, India 
Winner of People's Choice Award  International Movie Trailer Festival  2013  California, Amerika Serikat 
Official Selection  Holland Animation Film Festival  2016  Utrecht, Belanda 
Official Selection  Dingle International Film Festival  2016  Dublin, Irlandia 
Official Selection  Fantoche Internasional Animation Festival Film  2016  Baden, Swiss 
Special Screening  Athena Animfest  2016  Athena, Yunani 
Special Screening  New Chitose Internasional Animation Festival  2016  Hokkaido, Jepang 
Nominee of Best Foreign Animation Trailer  Annual Golden Trailer Award  2014  California, Amerika Serikat 
Nominee of Apresiasi Film Indonesia  Art and Film Board of Ministry of Culture & Education  2012  Jakarta, Indonesia 
First Winner of Indigo Fellowship Category  PT Telekomunikasi Indonesia  2012  Jakarta, Indonesia 
Winner of ICT Award Category  Digital Animation Inaicta   Minister for Communication and Information Technology  2012  Jakarta, Indonesia 
Nominee of Animafest 2D Short Animated Film MNCTV  (Briptu Dorman)  2011  Jakarta, Indonesia 
Second Winner of Digital Animation (The Adventure of Abdan – Honesty)  Exhibition of Indonesian Production   Minister of Industry Republic of Indonesia  2009  Jakarta, Indonesia 
Nominasi International Urbanimation  (The Adventure of Abdan – Kites)  2008  Jakarta, Indonesia 
Merit Winner ICT Award Category  Digital Animation Inaicta  Minister for Communication and Information Technology  2000  Jakarta, Indonesia 
Passage 6:
Seasoned Veteran
Seasoned Veteran is the third studio album by American rapper Richie Rich  It was released November 5, 1996 on Def Jam Recordings, and to date is the only major label release for the artist  The album was produced by Ali Malik, DJ Daryl, Doug Rasheed, Jermaine Dupri, Lev Berlak, Mike Mosley, Richie Rich and Rick Rock  It peaked at number 11 on the Billboard Top R&B/Hip-Hop Albums and at number 35 on the Billboard 200  Two of the singles released, "Let's Ride" and "Do G's Get To Go To Heaven?", both appeared on multiple Billboard singles charts  The album features guest performances by 2Pac, E-40, Luniz, D'wayne Wiggins, T-Boz, and Rame Royal of Rhythm & Green 
Along with the single, a music video was produced for the song, "Let's Ride"  A second single, "Do G's Get To Go To Heaven?", was also released as a music video, featuring Bo-Roc, and is dedicated to the memory of Tupac Shakur 
In the song "Niggas Done Changed" Feat  Tupac, 2Pac predicts his own death by saying “I been shot and murdered, can't tell you how it happened, word for word / But best believe niggas gonna get what they deserve ”

Critical reception
The Source – "   Seasoned Veteran is one of the few albums available in the reality rap genre that lives up to its name and comes close to meeting the listener's expectations   "

Track listing
Samples
Fresh Out

"For the Love of Money" by The O'JaysLet's Ride

"(Not Just) Knee Deep" by FunkadelicPillow

"(Lay Your Head on My) Pillow" by Tony! Toni! Toné!

Chart history
AlbumSingles

Personnel
Passage 7:
Lev Kuleshov
Lev Vladimirovich Kuleshov (Russian: Лев Владимирович Кулешов; 13 January [O S  1 January] 1899 – 29 March 1970) was a Russian and Soviet filmmaker and film theorist, one of the founders of the world's first film school, the Moscow Film School  He was given the title People's Artist of the RSFSR in 1969  He was intimately involved in development of the style of film making known as Soviet montage, especially its psychological underpinning, including the use of editing and the cut to influence the emotions of audience, a principle known as the Kuleshov effect  He also developed the theory of creative geography, which is the use of the action around a cut to connect otherwise disparate settings into a cohesive narrative 

Life and career
Lev Kuleshov was born in 1899 into an intellectual Russian family  His father Vladimir Sergeyevich Kuleshov was of noble heritage; he studied art in the Moscow School of Painting, Sculpture and Architecture, despite his own father's disapproval  He then married a village schoolteacher Pelagia Aleksandrovna Shubina who was raised in an orphanage, which only led to more confrontation  They gave birth to two sons: Boris and Lev 
At the time Lev Kuleshov was born, the family became financially broke, lost their estate and moved to Tambov, living a modest life  In 1911 Vladimir Kuleshov died; three years later Lev and his mother moved to Moscow where his elder brother was studying and working as an engineer  Lev Kuleshov decided to follow the steps of his father and entered the Moscow School of Painting, although he didn't finish it  In 1916 he applied to work at the film company led by Aleksandr Khanzhonkov  He produced scenery for Yevgeni Bauer's pictures, such as The King of Paris, For Happiness and others  With time Kuleshov became more interested in film theory  He co-directed his first movie Twilight in 1917  His next film was released under the Soviet patronage During 1918–1920 he covered the Russian Civil War with a documentary crew  In 1919 he headed the first Soviet film courses at the National Film School  Kuleshov may well be the very first film theorist as he was a leader in the Soviet montage theory – developing his theories of editing before those of Sergei Eisenstein (briefly a student of Kuleshov)  He contributed the article "Kinematografichesky naturshchik" to the first issue of Zrelishcha in 1922  Among his other notable students were Vsevolod Pudovkin, Boris Barnet, Mikhail Romm, Sergey Komarov, Porfiri Podobed, Vladimir Fogel and Aleksandra Khokhlova who became his wife  For Kuleshov, the essence of the cinema was editing, the juxtaposition of one shot with another  To illustrate this principle, he created what has come to be known as the Kuleshov effect  In this now-famous editing exercise, shots of an actor were intercut with various meaningful images (a casket, a bowl of soup, etc ) in order to show how editing changes viewers' interpretations of images  Another one of his famous inventions was creative geography, also known as artificial landscape  Those techniques were described in his book The Basics of Film Direction (1941) which was later translated into many languages 
In addition to his theoretical and teaching work, Kuleshov directed a number of feature-length films  Among his most notable works are an action-comedy The Extraordinary Adventures of Mr  West in the Land of the Bolsheviks (1924), a psychological drama By the Law (1926) adapted from the short story by Jack London and a biographical drama The Great Consoler (1933) based on O  Henry's life and works  In 1934 and 1935 Kuleshov went to Tajikistan to direct there Dokhunda, a movie based on the novel by Tajik national poet Sadriddin Ayni, but the project was regarded with suspicion by the authorities as possibly exciting Tajik nationalism, and stopped  No footage survives 

After directing his last film in 1943, Kuleshov served as an artistic director and an academic rector at VGIK where he worked for the next 25 years  He was a member of the jury at the 27th Venice International Film Festival, as well as a special guest during other international film festivals 
Lev Kuleshov died in Moscow in 1970  He was buried at the Novodevichy Cemetery  He was survived by his wife Aleksandra Khokhlova (1897–1985) – an actress, film director and educator, granddaughter of Pavel Tretyakov and Sergey Botkin – and Aleksandra's son Sergei from her first marriage 

Awards and honours
Order of the Red Banner of Labour (1944)
Order of Lenin (1967)
People's Artist of the RSFSR (1969)

Filmography
Passage 8:
Pamela B  Davis
Pamela B  Davis is a pediatric pulmonologist specializing in cystic fibrosis research  She has been Dean of the School of Medicine at Case Western Reserve University since 2007  She was elected to the Institute of Medicine in 2014 
Passage 9:
Pamela Gilbert
Pamela B  Gilbert (born October 3, 1958) is an American lawyer and has been a partner of the law firm Cuneo Gilbert & LaDuca, LLP since 2003, where she heads the firm's lobbying practice   Gilbert is a noted consumer rights advocate who has testified before Congress over fifty times and made dozens of appearances in the national print and electronic media  Gilbert leads the Committee to Support Antitrust laws (COSAL), an organization supportive of antitrust legislation 

Early career and education
Gilbert graduated magna cum laude from Tufts University with a B A  in Mathematics in 1980 and received her J D  degree from New York University in 1984  She was a Root-Tilden scholar at NYU Law School After law school, Gilbert served as Consumer Program Director at the U S  Public Interest Research Group from 1984-1989 where she specialized in consumer protection issues  She led the effort for congressional enactment of legislation to protect children from toxic art supplies From 1989-1994, Gilbert was Legislative Director and later Executive Director of Public Citizen's Congress Watch, a Washington-based consumer advocacy organization 

Public service
Gilbert served as Executive Director of the U S  Consumer Product Safety Commission (CPSC) from 1995-2001   In 2001 she left the government to serve as Chief Operating Officer of M&R Strategic Services, a national firm set up to lobby and conduct grassroots and media campaigns around public policy issues 
In 2009, after the election of President Barack Obama, Gilbert headed the Presidential Transition Team for the Consumer Product Safety Commission 

Post-government career
Gilbert represented the National Association of Shareholder and Consumer Attorneys to oppose efforts in Congress to change the rules for bringing class action lawsuits   Gilbert subsequently represented the Center for Justice & Democracy, opposing efforts in Congress to impose Federal government restrictions on malpractice laws 

2007-2009
In 2007, Gilbert worked with public interest organizations and victims of Enron's collapse to persuade the Securities and Exchange Commission (SEC) and the Bush Administration to adopt a position in a case pending before the U S  Supreme Court – Stoneridge Investment Partners LLC v  Scientific-Atlanta Inc  and Motorola Inc  – that would ensure that people slighted by Enron could sue the investment banks that participated in the frauds that led to Enron's failure   Gilbert's firm held press conferences in Washington, D C  and elsewhere, meeting with administration officials such as then-SEC Chairman Christopher Cox 
On November 15 of that same year, Gilbert testified before the Subcommittee on Commercial and Administrative Law of the House Committee on the Judiciary on "Protecting the Playroom: Holding Foreign Manufacturers Accountable for Defective Products "In 2008, Gilbert worked with the Center for Justice and Democracy to bring before Congress families with children who developed lead poisoning from hazardous toys, to urge the passage of the Consumer Product Safety Improvement act of 2008   This landmark legislation placed limits on the amount of lead that can be used in children's products 
Also that year, Gilbert testified before the Federal Communications Commission on behalf of consumers who were assessed fees for switching cell phone companies before their contracts expired  Her position was that such fees were unfair   She urged the FCC not to preempt state laws and state-based lawsuits intended to protect consumers from these allegedly unfair practices by cell phone companies Over the course of three years from 2007–2009, Gilbert organized a coalition of over a dozen labor and nonprofit organizations to support legislation that would provide a pathway for the approval of generic versions of costly medicines   A version of this legislation was later incorporated in national health care reform policies 
In 2009, Gilbert worked with people injured by defects in Chrysler and General Motors vehicles to urge the Obama administration and the automobile companies to modify their bankruptcy agreements to ensure that personal injury victims would have an opportunity to receive compensation   As a result, the agreements were modified to allow people injured in the future by vehicles manufactured before the bankruptcy to be compensated for their injuries 

2010
On February 4, 2010, Gilbert participated in a webcast sponsored by OMB Watch on "The Obama Administration and Public Protections "On behalf of the Committee to Support the Antitrust Laws, Gilbert worked with Congress and the Obama Administration to amend the Antitrust Criminal Penalty Enhancement and Reform Act to ensure that members of criminal antitrust conspiracies adequately cooperate with civil lawsuits in return for reduced damages 
On June 10, 2010, Pamela Gilbert was appointed to the board of directors of the AAI (American Antitrust Institute) 

2011–Present
On behalf of Consumers for Auto Reliability and Safety (CARS), Gilbert led the successful lobbying effort to pass a federal law prohibiting rental car companies from renting or selling recalled cars until they are repaired  Gilbert worked with Mrs  Cally Houck, whose two daughters were killed in a rental car that caught on fire and crashed as a result of an unrepaired defect that had been subject to a safety recall   President Obama on December 4, 2015 signed into law the "Raechel and Jacqueline Houck Safe Rental Car Act" (H R  2198, S  1173), sponsored by Reps  Capps, Jones, Schakowsky and Butterfield and Sens  Schumer, Boxer, McCaskill and others, as part of the Fixing America's Surface Transportation Act (FAST Act) 
Gilbert represents SD3, LLC, which owns SawStop, a table saw manufacturer whose table saws are equipped with technology that stops a spinning saw blade in milliseconds when it comes in contact with human flesh   Gilbert has worked with SawStop and a coalition of consumer protection groups in an effort to enact a mandatory safety standard so that all table saws contain injury mitigation technology to prevent amputations and other serious laceration injuries  The CPSC published a notice of proposed rulemaking in 2011  and in 2015 the commission's staff urged adoption of the new requirement Gilbert is working with a coalition of patients with diseases caused by asbestos exposure and their families to defeat the proposed Furthering Asbestos Claims Transparency (FACT) Act of 2015 (H R  526, S  357)  The proposal would require asbestos trusts to file quarterly reports about the payouts they make and personal information on the victims who receive them in a publicly accessible database  Opponents argue that this would violate the privacy of victims and use trust funds to meet the new administrative requirements, making it more difficult for asbestos claimants to receive timely and full compensation 

Notable writings
In 2008, Gilbert wrote a chapter entitled "Consumer Product Safety Commission: Safety First" for Change for America: A Progressive Blueprint for the 44th President, published by the Center for American Progress and the New Democracy Project In 2010, Gilbert authored a chapter in Materials on Tort Reform by Professor Andrew Popper of the Washington College of Law at American University In 2012, Gilbert co-authored with Victoria Romanenko a chapter in Private Enforcement of the Antitrust Laws in the United States (edited by Albert A  Foer and Randy M  Stutz) 

Controversy
In 2001, Gilbert stepped down as executive director of the Consumer Product Safety Commission (CPSC) after President Bush sparked a constitutional controversy by seeking to replace the leadership of the Commission, citing his powers under Article Two of the United States Constitution   Later, in 2008, Gilbert was mentioned as a possible appointee by President Barack Obama to be Chairman of the Commission   However, her nomination was criticized on the grounds that while she was executive director of the CPSC, the agency was known for its "strident enforcement efforts" contrary to large business interests 

Personal life
Gilbert is married to Charles Lewis, Professor of Journalism at American University, founder of the Center for Public Integrity, and a former producer for 60 Minutes   With Lewis she raises two children, Cassandra and Gabriel 

See also
Cuneo Gilbert & LaDuca, LLP
U S  Consumer Product Safety Commission
Passage 10:
Eliezer ben Jacob I
Eliezer ben Jacob I (Hebrew: אליעזר בן יעקב) was a Tanna of the 1st century; contemporary of Eleazar Chisma and Eliezer ben Hyrcanus, and senior to Judah ben Ilai Of his personal history nothing is known, except that he had seen the Temple at Jerusalem and was familiar with the specific purposes of its many apartments, a subject on which he was considered an authority  Some of the details, however, he eventually forgot, and was reminded of them by Abba Saul ben Batnit Simon ben Azzai, Rabbi Akiva's contemporary, relates that he had discovered a genealogical roll wherein was stated, "The Mishnah of R  Eliezer ben Jacob is only a kab [small in proportion], but clean [of all deficiencies]"; as a result, subsequent generations generally adopted Eliezer's views as law In the aggadah, too, he is mentioned  According to him, Deuteronomy 11:13 ("To serve Him with all your heart and with all your soul") is an admonition to the priests that, when officiating, they shall entertain no thought foreign to their duty Eliezer ben Jacob bequeathed to Israel many agrarian laws, such as the laws concerning the bringing of the Bikkurim to Jerusalem and who is eligible to recite the Avowal, as well as the laws concerning Kil'ayim grown in a vineyard He is buried near the old Kefar Hanaiah, in Galilee 



ground_truth: Wicked Twister

prompt_front: Answer the question based on the given passages. Only give me the answer and do not output any other words.

Question: Which filmmaker was known for animation, Lev Yilmaz or Pamela B. Green?

The following are given passages.
Context 4:  This model has been called an “evergreen balance sheet” BGF invests in a range of companies including start-ups, growth-stage businesses and quoted companies across almost every region and sector of the UK and Irish economy, barring financial services BGF has been recognised as the most active growth investor in the world by number of investments, averaging about one investment a week 

Notable investments
Recipe box delivery company Gousto first received funding from BGF in 2015  Gousto became a unicorn in 2020 when it completed a funding round valuing the business at more than $1 billion 
Social video advertising platform Unruly received financing from BGF in a funding round announced in 2012  The business was acquired by News Corp for £58 million in 2015 
M Squared, which develops lasers and photonic optical instruments, received funding from BGF in 2012  BGF exited the majority of its shareholding in the company in 2020 when the Scottish National Investment Bank became a shareholder 

The growth economy
The historian Sir Anthony Seldon has described the market segment of small and mid-sized companies in which BGF seeks to invest as “the growth economy”  Research by PwC found there were 21,400 growth economy companies in the UK in 2018, defined as fast-growing businesses that report turnover of between £2 5-100 million BGF provides an alternative source of funding for these companies, which have traditionally relied on bank loans to finance growth 
Passage 4:
Hardley Flood
Hardley Flood is a 49 8-hectare (123-acre) biological Site of Special Scientific Interest west of Great Yarmouth in Norfolk  It is part of the Broadland Ramsar site and Special Protection Area, and The Broads Special Area of Conservation This area of tidal lagoons and reedbeds provides a spillway for the River Chet  The reedbeds provide nesting sites for birds, including nationally important populations of several breeding birds  Three rare flies have been recorded, Elachiptera uniseta, Elachiptera scrobiculata and Lonchoptera scutellata The site is open to  the public 
Passage 5:
China IPR SME Helpdesk
The China IPR SME Helpdesk is a project funded by the European Commission's Directorate-General for Enterprise and Industry (DG ENTR)  It provides European  small and medium-sized enterprises with free, practical support on Intellectual Property Rights (IPR) in China  According to its website, The China IPR SME Helpdesk's mission is to "support European Union (EU) small and medium sized enterprises (SMEs) to both protect and enforce their Intellectual Property Rights (IPR) in or relating to China, through the provision of free information and services" A pilot programme of The China IPR SME Helpdesk was established in 2008 under the Competitiveness and Innovation Framework Programme and it was announced in January 2011 that the Helpdesk project has been extended for an additional three years (through the end of 2013) 
Passage 6:
Scathophaga
The genus Scathophaga are small to medium sized predatory flies that for the most part, have larvae that feed on other insect larva within animal dung or decaying vegetable matter  Many are highly variable, sometimes producing small, infertile males that superficially resemble females  This species is an example of an organism which may selectively store the sperm of multiple males, as females have three to four spermathecae 

Species
These 99 species belong to the genus Scathophaga:

Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide net
Passage 7:
Palmer Hay Flats State Game Refuge
The Palmer Hay Flats State Game Refuge is located in Alaska, south of Wasilla and north of Anchorage  It is composed of 28,800 acres (11,655 ha; 45 sq mi) of coastal marshy areas adjacent to Knik Arm that support populations of moose, muskrat, foxes, coyotes, eagles, and migratory waterfowl  In springtime, tens of thousands of migratory geese, swans, shoebirds, and ducks rest and refuel  Many of these stay in the summer  The Knik River, the Matanuska River, Rabbit Slough, Wasilla Creek, Cottonwood Creek, and Spring Creek flow through it It is a popular location for hunting, skiing, iceskating, and hiking, and other uses   It is bisected by the Glenn Highway 
It can be accessed at Rabbit Slough, from the Glenn Highway, Nelson Road, Scout Ridge and other locations 

History
An indigenous people called the Knikatnu first settled the land that would become the Palmer Hay Flats State Game Refuge before Alaskan annexation into the United States  The indigenous people left behind a trail that would become the Iditarod Trail  Prior to the 1964 Alaska earthquake, the land was dry grassland  The name of the refuge stems from the hay farming that went on before the earthquake 
Passage 8:
Gobizkorea
The GobizKOREA is operated by Korean SBC (Small & Medium Business Corporation), a non-profit, government-funded organization established to implement government policies and programs for the growth and development of Korean Small and Medium Enterprises (SMEs)  GobizKorea supports for overseas marketing and promotion of Korean small and medium sized corporations 

Main Activities
Search of Korean companies and products
Business Matching Service between Korean supplier and international buyers
Visitor Assistant Program
Passage 9:
River Chet
The River Chet is a small river in South Norfolk, England, a tributary of the River Yare  It rises in Poringland and flows eastwards through Alpington, Bergh Apton, Thurton and Loddon  At Loddon it passes under the A146 through Loddon Mill and into Loddon Staithe  From this point onwards the river is navigable  It then passes Hardley Flood to the north, a nature reserve part-managed by the Norfolk Wildlife Trust  The river finally joins the River Yare one mile west of Reedham at Hardley Cross, erected in 1676, which marks the ancient boundary between the City of Norwich and the Borough of Great Yarmouth  The total navigable length is some 3½ miles 

Fishing
Fishing is permitted between Loddon and Hardley Cross, bream and roach being the most common catch 

Churches
A number of churches along the river are known as the "Chet Valley Churches"  Most belong to the Church of England but they include the Church in Loddon, a combined Anglican and Methodist congregation 
Passage 10:
Chañaral Island
Isla Chañaral (sometimes referred to as Isla Chanaral or Chanaral Island) is located 6 km off-shore from the northern Central Chilean coast, some 100 km north of the city of La Serena  Together with Isla Choros and Isla Damas, the island forms the Humboldt Penguin National Reserve, which is administered by the Chilean Forestry Corporation  All three islands support populations of Humboldt penguins, but are also habitat for several other rare and endangered animal species such as the Peruvian diving petrel or the South American marine otter  In recent years the reserve has experienced a strong increase in tourist activities, mainly due to being an important feeding ground in the summer months of different marine mammal species like fin whales, blue whales, humpback whales, and bottlenose dolphins that reside in the waters of the reserve  The local fishermen formed an association in cooperation with the National Tourism Service Sernatur to conduct whale watching activities in a sustainable manner, implementing responsible whale watching guidelines 
Isla Chañaral is the biggest of the reserve's islands  Access to the island restricted by permit only  The island consists of two plateau levels  The main plateau between 50 and 70 meters above sea level is divided into a western and an eastern part by a second high plateau (>100 m)  The vegetation of the plateaus differs considerably  While the main plateau is dominated by shrub and cacti the high plateau has a barren appearance with only few small cactus aggregations 

External links and references
Chanaral Island: the biggest Humboldt Penguin Colony in the world
The Humboldt Penguin Colonies at Chanaral Island, Chile
Humboldt penguins from the International Penguin Conservation Web Site



ground_truth: Levni Yilmaz