James Webb Space Telescope - wikipedia James Webb Space Telescope `` Next generation space telescope '' redirects here. For future generations of space telescopes, see List of space telescopes and List of proposed space observatories. James Webb Space Telescope Six out of 18 mirrors of the James Webb Space Telescope being subjected to temperature dipping test Mission type Astronomy Operator NASA / ESA / CSA / STScI Website jwst.nasa.gov sci.esa.int/jwst asc-csa.gc.ca jwst.stsci.edu Mission duration 5 years ( design ) 10 years ( goal ) Spacecraft properties Manufacturer Northrop Grumman Ball Aerospace Launch mass 6,500 kg ( 14,300 lb ) 20.197 m × 14.162 m ( 66.26 ft × 46.46 ft ) ( sunshield ) Power 2,000 watts Start of mission Launch date Spring 2019 Rocket Ariane 5 ECA Launch site Kourou ELA - 3 Contractor Arianespace Orbital parameters Reference system Sun -- Earth L Regime Halo orbit Periapsis 374,000 km ( 232,000 mi ) Apoapsis 1,500,000 km ( 930,000 mi ) Period 6 months Epoch plan Main Type Korsch telescope Diameter 6.5 m ( 21 ft ) Focal length 131.4 m ( 431 ft ) Collecting area 25 m ( 270 sq ft ) Wavelengths from 0.6 μm ( orange ) to 28.5 μm ( mid-infrared ) Transponders Band S - band ( TT&C support ) K band ( data acquisition ) Bandwidth S - band up : 16 kbit / s S - band down : 40 kbit / s K band down : up to 28 Mbit / s Instruments NIRCam Near IR Camera NIRSpec Near - Infrared Spectrograph MIRI Mid IR Instrument NIRISS Near Infrared Imager and Slitless Spectrograph FGS Fine Guidance Sensor Elements : Integrated Science Instrument Module Optical Telescope Element Spacecraft Element ( Spacecraft Bus + Sunshield ) James Webb Space Telescope insignia Flagship Program ← Mars Science Laboratory Mars 2020 → The James Webb Space Telescope ( JWST ) is a space telescope developed in coordination among NASA, the European Space Agency, and the Canadian Space Agency. It is scheduled to be launched in 2019 and will be located near the Earth -- Sun L Lagrangian point. The telescope will offer unprecedented resolution and sensitivity from the long - wavelength ( orange to red ) visible light through the mid-infrared ( 0.6 to 27 micrometer ) range. JWST 's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant events and objects in the universe, such as the formation of the first galaxies. These types of targets are beyond the reach of current ground and space - based instruments. Some other goals include understanding the formation of stars and planets, and direct imaging of exoplanets and novas. In gestation since 1996, it is part of NASA 's Flagship program. The telescope is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program. NASA has described JWST as the scientific successor to the Hubble Space Telescope, but not a replacement, because the capabilities are not identical. JWST will have the ability to see high - redshift objects, typically both older and farther away than previous instruments could assess. The result was to extend the life of Hubble until JWST, as the next generation telescope, could go online. This led to a radically altered design for JWST to obtain images deeper into the infrared than Hubble, and beyond the capabilities of the Infrared Space Observatory and the Spitzer Space Telescope. In contrast to the Hubble Space Telescope, which has a 2.4 - meter ( 7.9 ft ) mirror, the JWST primary mirror is composed of 18 hexagonal mirror segments for a combined mirror size of 6.5 - meter - diameter ( 21 ft 4 in ). A large sunshield will keep JWST 's mirror and four science instruments below 50 K ( − 220 ° C ; − 370 ° F ). In December 2016, NASA announced that the JWST has passed major milestones, including completion of its primary mirror and integration of science instruments with the payload module, and is undergoing acoustic and extreme vibration testing to simulate launch conditions. Contents 1 Overview 1.1 Sunshield protection 1.2 Optics 1.3 Scientific instruments 1.4 Spacecraft Bus 1.5 Launch and mission length 1.6 Comparisons 2 History 2.1 Development and construction 2.2 Cost and schedule issues 2.3 Partnership 2.4 Public displays and outreach 3 Mission 3.1 Orbit 3.2 Infrared astronomy 3.3 Ground support and operations 4 After - launch deployment 5 Observations and Science Programs 5.1 Early Release Science Program 6 See also 7 Notes 8 References 9 Further reading 10 External links Overview Launch configuration of the JWST in an Ariane 5 Atmospheric Windows in the Infrared The JWST originated in 1996 as the Next Generation Space Telescope ( NGST ). In 2002 it was renamed after NASA 's second administrator ( 1961 -- 1968 ) James E. Webb ( 1906 -- 1992 ), noted for playing a key role in the Apollo program and establishing scientific research as a core NASA activity. The JWST is a project of the National Aeronautics and Space Administration, the United States space agency, with international collaboration from the European Space Agency and the Canadian Space Agency. The telescope has an expected mass about half of Hubble Space Telescope 's, but its primary mirror ( a 6.5 meter diameter gold - coated beryllium reflector ) will have a collecting area about five times as large ( 25 m or 270 sq ft vs. 4.5 m or 48 sq ft ). The JWST is oriented toward near - infrared astronomy, but can also see orange and red visible light, as well as the mid-infrared region, depending on the instrument. The design emphasizes the near to mid-infrared for three main reasons : High - redshift objects have their visible emissions shifted into the infrared, cold objects such as debris disks and planets emit most strongly in the infrared, and this band is difficult to study from the ground or by existing space telescopes such as Hubble. Ground based telescopes must look through the atmosphere, which is opaque in many infrared bands ( see figure of atmospheric transmission ). Even where the atmosphere is transparent, many of the target chemical compounds, such as water, carbon dioxide, and methane, also exist in the Earth 's atmosphere, vastly complicating analysis. Existing space telescopes such as Hubble can not study these bands since their mirrors are not cool enough ( the Hubble mirror is maintained at about 15 degrees C ) and hence the telescope itself radiates strongly in the IR bands. The JWST will operate near the Earth - Sun L2 ( Lagrange ) point, approximately 930,000 mi ( 1,500,000 km ) beyond Earth 's orbit. By way of comparison, Hubble orbits 340 miles ( 550 km ) above Earth 's surface, and the Moon is roughly 250,000 miles ( 400,000 km ) from Earth. This distance makes post-launch repair or upgrade of the JWST hardware virtually impossible. Objects near this point can orbit the Sun in synchrony with the Earth, allowing the telescope to remain at a roughly constant distance and use a single sunshield to block heat and light from the Sun and Earth. This will keep the temperature of the spacecraft below 50 K ( − 220 ° C ; − 370 ° F ), necessary for infrared observations. The prime contractor is Northrop Grumman. Sunshield protection Test unit of the sunshield stacked and expanded at the Northrop Grumman facility in California, 2014 Main article : Sunshield ( JWST ) To make observations in the infrared spectrum, the JWST must be kept very cold ( under 50 K ( − 220 ° C ; − 370 ° F ) ), otherwise infrared radiation from the telescope itself would overwhelm its instruments. Therefore, it uses a large sunshield to block light and heat from the Sun, Earth, and Moon, and its position near the Earth -- Sun L point keeps all three bodies on the same side of the spacecraft at all times. Its halo orbit around L avoids the shadow of the Earth and Moon, maintaining a constant environment for the sunshield and solar arrays. The sunshield is made of polyimide film, and has membranes coated with aluminum on one side and silicon on the other. The sunshield is designed to be folded twelve times so it will fit within the Ariane 5 rocket 's 4.57 m × 16.19 m shroud. Once deployed at the L2 point, it will unfold to 21.197 m × 14.162 m. The sunshield was hand - assembled at Man Tech ( NeXolve ) in Huntsville, Alabama before it was delivered to Northrop Grumman in Redondo Beach, California for testing. Optics Main mirror assembled at Goddard Spaceflight Center, May 2016 Main article : Optical Telescope Element JWST 's primary mirror is a 6.5 - meter - diameter gold - coated beryllium reflector with a collecting area of 25 m. This is too large for existing launch vehicles, so the mirror is composed of 18 hexagonal segments, which will unfold after the telescope is launched. Image plane wavefront sensing through phase retrieval will be used to position the mirror segments in the correct location using very precise micro-motors. Subsequent to this initial configuration they will only need occasional updates every few days to retain optimal focus. This is unlike terrestrial telescopes like the Keck which continually adjust their mirror segments using active optics to overcome the effects of gravitational and wind loading, and is made possible because of the lack of environmental disturbances of a telescope in space. JWST 's optical design is a three - mirror anastigmat, which makes use of curved secondary and tertiary mirrors to deliver images that are free of optical aberrations over a wide field. In addition, there is a fast steering mirror, which can adjust its position many times per second to provide image stabilization. Ball Aerospace & Technologies Corp. is the principal optical subcontractor for the JWST project, led by prime contractor Northrop Grumman Aerospace Systems, under a contract from the NASA Goddard Space Flight Center, in Greenbelt, Maryland. Eighteen primary mirror segments, secondary, tertiary and fine steering mirrors, plus flight spares have been fabricated and polished by Ball Aerospace based on beryllium segment blanks manufactured by several companies including Axsys, Brush Wellman, and Tinsley Laboratories. The final segment of the primary mirror was installed on February 3, 2016, and the secondary mirror was installed on March 3, 2016. Scientific instruments The Integrated Science Instrument Module ( ISIM ) is a framework that provides electrical power, computing resources, cooling capability as well as structural stability to the Webb telescope. It is made with bonded graphite - epoxy composite attached to the underside of Webb 's telescope structure. The ISIM holds the four science instruments and a guide camera. NIRCam model NIRSpec model MIRI model Near InfraRed Camera ( NIRCam ) is an infrared imager which will have a spectral coverage ranging from the edge of the visible ( 0.6 micrometers ) through the near infrared ( 5 micrometers ). NIRCam will also serve as the observatory 's wavefront sensor, which is required for wavefront sensing and control activities. NIRCam was built by a team led by the University of Arizona, with Principal Investigator Marcia Rieke. The industrial partner is Lockheed - Martin 's Advanced Technology Center located in Palo Alto, California. Near InfraRed Spectrograph ( NIRSpec ) will also perform spectroscopy over the same wavelength range. It was built by the European Space Agency at ESTEC in Noordwijk, Netherlands. The leading development team is composed of people from Airbus Defence and Space, Ottobrunn and Friedrichshafen, Germany, and the Goddard Space Flight Center ; with Pierre Ferruit ( École normale supérieure de Lyon ) as NIRSpec project scientist. The NIRSpec design provides three observing modes : a low - resolution mode using a prism, an R ~ 1000 multi-object mode and an R ~ 2700 integral field unit or long - slit spectroscopy mode. Switching of the modes is done by operating a wavelength preselection mechanism called the Filter Wheel Assembly, and selecting a corresponding dispersive element ( prism or grating ) using the Grating Wheel Assembly mechanism. Both mechanisms are based on the successful ISOPHOT wheel mechanisms of the Infrared Space Observatory. The multi-object mode relies on a complex micro-shutter mechanism to allow for simultaneous observations of hundreds of individual objects anywhere in NIRSpec 's field of view. The mechanisms and their optical elements were designed, integrated and tested by Carl Zeiss Optronics GmbH of Oberkochen, Germany, under contract from Astrium. Mid-InfraRed Instrument ( MIRI ) will measure the mid-infrared wavelength range from 5 to 27 micrometers. It contains both a mid-infrared camera and an imaging spectrometer. MIRI was developed as a collaboration between NASA and a consortium of European countries, and is led by George Rieke ( University of Arizona ) and Gillian Wright ( UK Astronomy Technology Centre, Edinburgh, part of the Science and Technology Facilities Council ( STFC ) ). MIRI features similar wheel mechanisms as NIRSpec which are also developed and built by Carl Zeiss Optronics GmbH under contract from the Max Planck Institute for Astronomy, Heidelberg. The completed Optical Bench Assembly of MIRI was delivered to Goddard in mid-2012 for eventual integration into the ISIM. The temperature of the MIRI must not exceed 6 Kelvin ( K ) : a helium gas mechanical cooler sited on the warm side of the environmental shield provides this cooling. Fine Guidance Sensor and Near InfraRed Imager and Slitless Spectrograph ( FGS / NIRISS ), led by the Canadian Space Agency under project scientist John Hutchings ( Herzberg Institute of Astrophysics, National Research Council of Canada ), is used to stabilize the line - of - sight of the observatory during science observations. Measurements by the FGS are used both to control the overall orientation of the spacecraft and to drive the fine steering mirror for image stabilization. The Canadian Space Agency is also providing a Near Infrared Imager and Slitless Spectrograph ( NIRISS ) module for astronomical imaging and spectroscopy in the 0.8 to 5 micrometer wavelength range, led by principal investigator René Doyon at the University of Montreal. Because the NIRISS is physically mounted together with the FGS, they are often referred to as a single unit, but they serve entirely different purposes, with one being a scientific instrument and the other being a part of the observatory 's support infrastructure. NIRCam and MIRI feature starlight - blocking coronagraphs for observation of faint targets such as extrasolar planets and circumstellar disks very close to bright stars. The infrared detectors for the NIRCam, NIRSpec, FGS, and NIRISS modules are being provided by Teledyne Imaging Sensors ( formerly Rockwell Scientific Company ). The James Webb Space Telescope ( JWST ) Integrated Science Instrument Module ( ISIM ) and Command and Data Handling ( ICDH ) engineering team uses SpaceWire to send data between the science instruments and the data - handling equipment. Spacecraft Bus Main article : Spacecraft Bus ( JWST ) Diagram of the Spacecraft Bus. The solar panel is in green and the light purple flats are radiators shades The Spacecraft Bus is the primary support component of the James Webb Space Telescope, that hosts a multitude of computing, communication, propulsion, and structural parts, bringing the different parts of the telescope together. Along with the Sunshield, it forms the Spacecraft Element of the space telescope. The other two major elements of the JWST are the Integrated Science Instrument Module ( ISIM ) and the Optical Telescope Element ( OTE ). Region 3 of ISIM is also inside the Spacecraft Bus ; region 3 includes ISIM Command and Data Handling subsystem and the MIRI cryocooler. The Spacecraft Bus is connected to Optical Telescope Element via the Deployable Tower Assembly, which also connects to the sunshield. The structure of the Spacecraft Bus must support the 6.5 ton space telescope, while it itself weighs 350 kg ( about 772 lb ). It is made primarily of graphite composite material. It was assembled in California by 2015, and after that it had to be integrated with the rest of the space telescope leading up to its planned 2019 launch. The bus can provide pointing of one - arcsecond and isolates vibration down to two ( 2 ) milliarcseconds. The Spacecraft Bus is on the Sun - facing `` warm '' side and operates at a temperature of about 300 K. Everything on the Sun facing side must be able to handle the thermal conditions of JWST 's halo orbit, which has one side in continuous sunlight and the other in shade by the spacecraft sunshield. Another important aspect of the Spacecraft Bus is the central computing, memory storage, and communications equipment. The processor and software direct data to and from the instruments, to the solid - state memory core, and to the radio system which can send data back to Earth and receive commands. The computer also controls the pointing and moment of the spacecraft, taking in sensor data from the gyroscopes and star tracker, and sending the necessary commands to the reaction wheels or thrusters depending. Launch and mission length Launch is planned between March and June 2019 on an Ariane 5 rocket. The observatory attaches to the Ariane 5 rocket via a launch vehicle adapter ring which could be used by a future spacecraft to grapple the observatory to attempt to fix gross deployment problems. However, the telescope itself is not serviceable, and astronauts would not be able to perform tasks such as swapping instruments, as with the Hubble Telescope. Its nominal mission time is five years, with a goal of ten years. JWST needs to use propellant to maintain its halo orbit around L2, which provides an upper limit to its designed lifetime, and it is being designed to carry enough for ten years. The planned five year science mission begins after a 6 - month commissioning phase. An L2 orbit is meta - stable so it requires orbital station - keeping or an object will drift away from this orbital configuration. Comparisons Comparison with Hubble primary mirror Calisto architecture for SAFIR would be a successor to Spitzer, requiring even cooler passive cooling than JWST ( 5 Kelvin ). The desire for a large infrared space telescope traces back decades ; in the United States the Shuttle Infrared Telescope Facility was planned while the Space Shuttle was in development and the potential for infrared astronomy was acknowledged at that time. Compared to ground telescopes, space observatories were free from atmospheric absorption of infrared light ; this would be a whole `` new sky '' for astronomers. The tenuous atmosphere above the 400 km nominal flight altitude has no measurable absorption so that detectors operating at all wavelengths from 5 μm to 1000 μm can achieve high radiometric sensitivity. -- S.G. McCarthy & G.W. Autio, 1978 However, infrared telescopes have an Achilles heel -- they need to stay extremely cold, and the longer the wavelength of infrared, the colder they need to be. If not, the background heat of the device itself overwhelms the detectors, making it effectively blind. This can be overcome by careful spacecraft design, in particular by placing the telescope in dewar with an extremely cold substance, such as liquid helium. This has meant most infrared telescopes have a lifespan limited by their coolant, as short as a few months, maybe a few years at most. It has been possible to maintain a temperature low enough through the design of the spacecraft to enable near - infrared observations without a supply of coolant, such as the extended missions of Spitzer or NEOWISE. Another example is Hubble 's NICMOS instrument, which started out using a block of nitrogen ice that depleted after a couple years, but was then converted to a cryocooler that worked continuously. The James Webb Space Telescope is designed to cool itself without a dewar, using a combination of sunshield and radiators with the mid-infrared instrument using an additional cryocooler. The telescope 's delays and cost increases can be compared to the Hubble Space Telescope. When Hubble formally started in 1972, it then had an estimated development cost of $300 million ( or about $1 billion in 2006 constant dollars ), but by the time it was sent into orbit in 1990, the cost was about four times that. In addition new instruments and servicing missions increased the cost to at least $9 billion by 2006. In contrast to other proposed observatories, most of which have already been canceled or put on hold, including Terrestrial Planet Finder ( 2011 ), Space Interferometry Mission ( 2010 ), Laser Interferometer Space Antenna ( 2011 ), and the International X-ray Observatory ( 2011 ), MAXIM ( Microarcsecond X-ray Imaging Mission ), SAFIR ( Single Aperture Far - Infrared Observatory ), SUVO ( Space Ultraviolet - Visible Observatory ), SPECS ( Submillimeter Probe of the Evolution of Cosmic Structure ), the JWST is the last big NASA astrophysics mission of its generation to be built. Selected space telescopes and instruments Name Year Wavelength Aperture Cooling Human eye -- 0.39 -- 0.75 μm 0.007 m N / A IRT 1985 1.7 - 118 μm 0.15 m Helium ISO 1995 2.5 - 240 μm 0.60 m Helium Hubble STIS 1997 0.115 -- 1.03 μm 2.4 m Passive Hubble NICMOS 1997 0.8 - 2.4 μm 2.4 m Nitrogen, later cryo - cooler Spitzer 2003 3 -- 180 μm 0.85 m Helium Hubble WFC3 2009 0.2 -- 1.7 μm 2.4 m Passive + Thermo - electric Herschel 2009 55 -- 672 μm 3.5 m Helium JWST Planned 0.6 -- 28.5 μm 6.5 m Passive + Cryo - cooler ( MIRI ) History Development and construction Selected Events Year Events NGST started 2002 named JWST, 8 to 6 m NEXUS cancelled 2007 esa / nasa MOU MCDR passed 2011 Proposed cancel 2019 Planned launch Primary mirror segments made of beryllium Mirror segments undergoing cryogenic tests at the X-ray & Cryogenic Facility at Marshall Space Flight Center Mirror segment after being coated with gold Early development work for a Hubble successor between 1989 and 1994 led to the Hi - Z telescope concept, a fully baffled 4 - meter aperture infrared telescope that would recede to an orbit at 3 AU. This distant orbit would have benefited from reduced light noise from zodiacal dust. Other early plans called for a NEXUS precursor telescope mission. In the `` faster, better, cheaper '' era in the mid-1990s, NASA leaders pushed for a low - cost space telescope. The result was the NGST concept, with an 8 - meter aperture and located at L2, estimated to cost $500 million. In 1997, NASA worked with the Goddard Space Flight Center, Ball Aerospace, and TRW to conduct technical requirement and cost studies, and in 1999 selected Lockheed Martin and TRW for preliminary design concepts. A JWST mirror segment, 2010 In 2002, NASA awarded the $824.8 million prime contract for the NGST, now renamed the James Webb Space Telescope, to TRW. The design called for a descoped 6.1 - meter ( 20 ft ) primary mirror and a launch date of 2010. Later that year, TRW was acquired by Northrop Grumman in a hostile bid and became Northrop Grumman Space Technology. NASA 's Goddard Space Flight Center in Greenbelt, Maryland, is leading the management of the observatory project. The project scientist for the James Webb Space Telescope is John C. Mather. Northrop Grumman Aerospace Systems serves as the primary contractor for the development and integration of the observatory. They are responsible for developing and building the spacecraft element, which includes both the spacecraft bus and sunshield. Ball Aerospace has been subcontracted to develop and build the Optical Telescope Element ( OTE ). Northrop Grumman 's Astro Aerospace business unit has been contracted to build the Deployable Tower Assembly ( DTA ) which connects the OTE to the spacecraft bus and the Mid Boom Assembly ( MBA ) which helps to deploy the large sunshields on orbit. Goddard Space Flight Center is also responsible for providing the Integrated Science Instrument Module ( ISIM ). A solar panel converts sunlight into electrical power that recharges batteries needed to operate the other subsystems, as well as the science instruments, but heat from these operations must be dissipated for optimal instrument performance at 50 K ( − 220 ° C ; − 370 ° F ). Cost growth revealed in spring 2005 led to an August 2005 re-planning. The primary technical outcomes of the re-planning were significant changes in the integration and test plans, a 22 - month launch delay ( from 2011 to 2013 ), and elimination of system - level testing for observatory modes at wavelength shorter than 1.7 micrometers. Other major features of the observatory were unchanged. Following the re-planning, the project was independently reviewed in April 2006. The review concluded the project was technically sound, but that funding phasing at NASA needed to be changed. NASA re-phased its JWST budgets accordingly. In the 2005 re-plan, the life - cycle cost of the project was estimated at about US $ 4.5 billion. This comprised approximately US $3.5 billion for design, development, launch and commissioning, and approximately US $1.0 billion for ten years of operations. ESA is contributing about € 300 million, including the launch, and the Canadian Space Agency about $39 M Canadian. In January 2007, nine of the ten technology development items in the project successfully passed a non-advocate review. These technologies were deemed sufficiently mature to retire significant risks in the project. The remaining technology development item ( the MIRI cryocooler ) completed its technology maturation milestone in April 2007. This technology review represented the beginning step in the process that ultimately moved the project into its detailed design phase ( Phase C ). By May 2007, costs were still on target. In March 2008, the project successfully completed its Preliminary Design Review ( PDR ). In April 2008, the project passed the Non-Advocate Review. Other passed reviews include the Integrated Science Instrument Module review in March 2009, the Optical Telescope Element review completed in October 2009, and the Sunshield review completed in January 2010. In April 2010, the telescope passed the technical portion of its Mission Critical Design Review ( MCDR ). Passing the MCDR signified the integrated observatory can meet all science and engineering requirements for its mission. The MCDR encompassed all previous design reviews. The project schedule underwent review during the months following the MCDR, in a process called the Independent Comprehensive Review Panel, which led to a re-plan of the mission aiming for a 2015 launch, but as late as 2018. By 2010, cost over-runs were impacting other project, though JWST itself remained on schedule. By 2011, the JWST project was in the final design and fabrication phase ( Phase C ). As is typical for a complex design that can not be changed once launched, there are detailed reviews of every portion of design, construction, and proposed operation. New technological frontiers have been pioneered by the project, and it has passed its design reviews. In the 1990s it was unknown if a telescope so large and low mass was possible. Assembly of the hexagonal segments of the primary mirror, which was done via robotic arm, began in November 2015 and was completed in February 2016. Final construction of the Webb telescope was completed in November 2016, after which extensive testing procedures began. Cost and schedule Issues Then - planned launch and costs Year Launch Budget Plan 1997 2007 0.5 Billion USD 1998 2007 1999 2007 to 2008 2000 2009 1.8 2002 2.5 2003 2011 2.5 2005 2013 2006 2014 4.5 2008 2014 5.1 2015 to 2016 6.5 2011 2018 8.7 2013 2018 8.8 2017 2019 8.8 A 2006 article in the journal Nature noted a study in 1984 by the Space Science Board, which estimated that a next generation infrared observatory would cost $4 billion ( about $7 billion in 2006 dollars ). In June 2011, it was reported that the Webb telescope would cost at least four times more than originally proposed, and launch at least seven years late. Initial budget estimates were that the observatory would cost $1.6 billion and launch in 2011. NASA has now scheduled the telescope for a 2019 launch. The JWST has a history of major cost overruns and delays which have resulted from outside factors such as delays in deciding on a launch vehicle and adding extra funding for contingencies. The first budget estimates were that the observatory would cost $1.6 billion and launch in 2011, but NASA has now scheduled the telescope for a 2019 launch on a budget that has grown to $8.8 billion. In 2011, the United States House of Representatives voted to terminate funding, after about $3 billion had been spent and 75 % of its hardware was in production. Funding was restored and capped at $8 billion. As of September 2017, the telescope remained on schedule for a spring 2019 launch and within the 2011 revised budget. One of the reasons why the cost grew so much is that it is difficult to forecast the cost of development, and in general budget predictability improved when initial development milestones were achieved. Some scientists have expressed concerns about growing costs and schedule delays for the Webb telescope, which competes for scant astronomy budgets and thus threatens funding for other space science programs. A review of NASA budget records and status reports noted that the JWST is plagued by many of the same problems that have affected other major NASA projects. Repairs and additional testing included underestimates of the telescope 's cost that failed to budget for expected technical glitches, missed budget projections, and evaluation of components to estimate extreme launch conditions, thus extending the schedule and increasing costs further. By 2006, $1 billion had been spent on developing JWST, with the budget at about $4.5 billion at that time. By the mid-2010s, the U.S. contribution was still expected to cost $8.8 billion, but this does not include the international contributions. With the combined U.S. and international funding, the overall cost not including extended operations is projected to be over $10 billion when completed. On 6 July 2011, the United States House of Representatives ' appropriations committee on Commerce, Justice, and Science moved to cancel the James Webb project by proposing an FY2012 budget that removed $1.9 bn from NASA 's overall budget, of which roughly one quarter was for JWST. This budget proposal was approved by subcommittee vote the following day ; however, in November 2011, Congress reversed plans to cancel the JWST and instead capped additional funding to complete the project at $8 billion. The committee charged that the project was `` billions of dollars over budget and plagued by poor management ''. The telescope was originally estimated to cost $1.6 bn but the cost estimate grew throughout the early development reaching about $5 bn by the time the mission was formally confirmed for construction start in 2008. In summer 2010, the mission passed its Critical Design Review with excellent grades on all technical matters, but schedule and cost slips at that time prompted Maryland US Senator Barbara Mikulski to call for an independent review of the project. The Independent Comprehensive Review Panel ( ICRP ) chaired by J. Casani ( JPL ) found that the earliest possible launch date was in late 2015 at an extra cost of $1.5 bn ( for a total of $6.5 bn ). They also pointed out that this would have required extra funding in FY2011 and FY2012 and that any later launch date would lead to a higher total cost. Because the runaway budget diverted funding from other research, the science journal Nature described the James Webb as `` the telescope that ate astronomy ''. However, termination of the JWST project as proposed by the House appropriation committee also would have imperiled funding to other missions, such as the Wide - Field Infrared Survey Telescope. The American Astronomical Society issued a statement in support of JWST in 2011, as did Maryland US Senator Barbara Mikulski. A number of editorials supporting JWST appeared in the international press during 2011 as well. Partnership NASA, ESA and CSA have collaborated on the telescope since 1996. ESA 's participation in construction and launch was approved by its members in 2003 and an agreement was signed between ESA and NASA in 2007. In exchange for full partnership, representation and access to the observatory for its astronomers, ESA is providing the NIRSpec instrument, the Optical Bench Assembly of the MIRI instrument, an Ariane 5 ECA launcher, and manpower to support operations. The CSA will provide the Fine Guidance Sensor and the Near - Infrared Imager Slitless Spectrograph plus manpower to support operations. Participating countries Austria Belgium Canada Czech Republic Denmark Finland France Germany Greece Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom United States Public displays and outreach Early full - scale model on display at NASA Goddard ( 2005 ) A large telescope model has been on display at various places since 2005 : in the United States at Seattle, Washington ; Colorado Springs, Colorado ; Greenbelt, Maryland ; Rochester, New York ; Manhattan, New York ; and Orlando, Florida ; and elsewhere at Paris, France ; Dublin, Ireland ; Montreal, Quebec, Canada ; Hatfield, United Kingdom ; and Munich, Germany. The model was built by the main contractor, Northrop Grumman Aerospace Systems. In May 2007, a full - scale model of the telescope was assembled for display at the Smithsonian Institution 's National Air and Space Museum on the National Mall, Washington D.C. The model was intended to give the viewing public a better understanding of the size, scale and complexity of the satellite, as well as pique the interest of viewers in science and astronomy in general. The model is significantly different from the telescope, as the model must withstand gravity and weather, so is constructed mainly of aluminum and steel measuring approximately 24 × 12 × 12 m ( 79 × 39 × 39 ft ) and weighs 5.5 tonnes ( 12,000 lb ). The model was on display in New York City 's Battery Park during the 2010 World Science Festival, where it served as the backdrop for a panel discussion featuring Nobel Prize laureate John C. Mather, astronaut John M. Grunsfeld and astronomer Heidi Hammel. In March 2013, the model was on display in Austin, Texas for SXSW 2013. Mission The JWST 's primary scientific mission has four key goals : to search for light from the first stars and galaxies that formed in the Universe after the Big Bang, to study the formation and evolution of galaxies, to understand the formation of stars and planetary systems and to study planetary systems and the origins of life. These goals can be accomplished more effectively by observation in near - infrared light rather than light in the visible part of the spectrum. For this reason the JWST 's instruments will not measure visible or ultraviolet light like the Hubble Telescope, but will have a much greater capacity to perform infrared astronomy. The JWST will be sensitive to a range of wavelengths from 0.6 ( orange light ) to 28 micrometers ( deep infrared radiation at about 100 K ( − 170 ° C ; − 280 ° F ) ). JWST may be used to gather information on the dimming light of star KIC 8462852, which was discovered in 2015, and has some abnormal light - curve properties. Orbit JWST will not be exactly at the L2 point, but circle around it in a halo orbit. Two alternate Hubble Space Telescope views of the Carina Nebula, comparing ultraviolet and visible ( top ) and infrared ( bottom ) astronomy. Far more stars are visible in the latter. The JWST will be located near the second Lagrange point ( L ) of the Earth - Sun system, which is 1,500,000 kilometers ( 930,000 mi ) from Earth, directly opposite to the Sun. Normally an object circling the Sun farther out than Earth would take longer than one year to complete its orbit, but near the L point the combined gravitational pull of the Earth and the Sun allow a spacecraft to orbit the Sun in the same time it takes the Earth. The telescope will circle about the L point in a halo orbit, which will be inclined with respect to the ecliptic, have a radius of approximately 800,000 kilometers ( 500,000 mi ), and take about half a year to complete. Since L is just an equilibrium point with no gravitational pull, a halo orbit is not an orbit in the usual sense : the spacecraft is actually in orbit around the Sun, and the halo orbit can be thought of as controlled drifting to remain in the vicinity of the L point. This requires some station - keeping : around 2 -- 4 m / s per year from the total budget of 150 m / s. Two sets of thrusters constitute the observatory 's propulsion system. Infrared astronomy Infrared observations can see objects hidden in visible light, such as HUDF - JD2 shown. JWST is the formal successor to the Hubble Space Telescope ( HST ), and since its primary emphasis is on infrared observation, it is also a successor to the Spitzer Space Telescope. JWST will far surpass both those telescopes, being able to see many more and much older stars and galaxies. Observing in the infrared is a key technique for achieving this, because it better penetrates obscuring dust and gas, allows observation of dim cooler objects, and because of cosmological redshift. Since water vapor and carbon dioxide in the Earth 's atmosphere strongly absorbs most infrared, ground - based infrared astronomy is limited to narrow wavelength ranges where the atmosphere absorbs less strongly. Additionally, the atmosphere itself radiates in the infrared, often overwhelming light from the object being observed. This makes space the ideal position for infrared observation. The more distant an object is, the younger it appears : its light has taken longer to reach human observers. Because the universe is expanding, as the light travels it becomes red - shifted, and these objects are therefore easier to see if viewed in the infrared. JWST 's infrared capabilities are expected to let it see back in time to the first galaxies forming just a few hundred million years after the Big Bang. Infrared radiation can pass more freely through regions of cosmic dust that scatter radiation in the visible spectrum. Observations in infrared allow the study of objects and regions of space which would be obscured by gas and dust in the visible spectrum, such as the molecular clouds where stars are born, the circumstellar disks that give rise to planets, and the cores of active galaxies. Relatively cool objects ( temperatures less than several thousand degrees ) emit their radiation primarily in the infrared, as described by Planck 's law. As a result, most objects that are cooler than stars are better studied in the infrared. This includes the clouds of the interstellar medium, brown dwarfs, planets both in our own and other solar systems, comets and Kuiper belt objects that will be observed with the Mid-Infrared Instrument ( MIRI ) requiring an additional cry - cooler. Some of the missions in infrared astronomy that impacted JWST development were Spitzer and also the WMAP probe. Spitzer showed the importance of mid-infrared, such as in its observing dust disks around stars. Also, the WMAP probe showed the universe was `` lit up '' at redshift 17, further underscoring the importance of the mid-infrared. Both these missions launched in the early 2000s, in time to influence JWST development. On JWST the mid-infrared science instrument is MIRI, and it required an additional cry - cooler. Ground support and operations The Space Telescope Science Institute ( STScI ), located in Baltimore, Maryland on the Homewood campus of Johns Hopkins University, was selected as the Science and Operations Center ( S&OC ) for JWST with an initial budget of $162.2 million intended to support operations through the first year after launch. In this capacity, STScI will be responsible for the scientific operation of the telescope and delivery of data products to the astronomical community. Data will be transmitted from JWST to the ground via NASA 's Deep Space Network, processed and calibrated at STScI, and then distributed online to astronomers worldwide. Similar to how Hubble is operated, anyone, anywhere in the world, will be allowed to submit proposals for observations. Each year several committees of astronomers will peer review the submitted proposals to select the projects to observe in the coming year. The authors of the chosen proposals will typically have one year of private access to the new observations, after which the data will become publicly available for download by anyone from the online archive at STScI. Most of the data processing on the telescope is done by conventional single - board computers. The conversion of the analog science data to digital form is performed by the custom - built SIDECAR ASIC ( System for Image Digitization, Enhancement, Control And Retrieval Application Specific Integrated Circuit ). NASA stated that the SIDECAR ASIC will include all the functions of a 9 kg ( 20 lb ) instrument box in a 3 cm package and consume only 11 milliwatts of power. Since this conversion must be done close to the detectors, on the cool side of the telescope, the low power use of this IC will be crucial for maintaining the low temperature required for optimal operation of the JWST. After - launch deployment Nearly a month after launch, a trajectory correction will be initiated to place the JWST into a halo orbit at the L lagrangian point. 3 / 4 view of the top Bottom ( sun - facing side ) JWST after - launch deployment planned timeline Observations and Science programs JWST observing time will be allocated through a Director 's Discretionary Early Release Science ( DD - ERS ) Program, a Guaranteed Time Observations ( GTO ) Program, and a General Observers ( GO ) Program. The GTO Program provides guaranteed observing time for scientists who developed hardware and software components for the observatory. The GO Program provides all astronomers the opportunity to apply for observing time. GO programs will be selected through peer review by a Time Allocation Committee ( TAC ), similar to the proposal review process used for the Hubble Space Telescope. JWST observing time is expected to be highly oversubscribed, meaning that the number of submitted GO proposals will be much larger than the number that can be approved in any observing cycle. Early Release Science Program In November 2017, the Space Telescope Science Institute announced the selection of 13 Director 's Discretionary Early Release Science ( DD - ERS ) Programs, chosen through a competitive proposal process. The observations for these programs will be obtained during the first five months of JWST science operations after the end of the commissioning period. A total of 460 hours of observing time was awarded to these 13 programs, which span science topics including the Solar System, exoplanets, stars and star formation, nearby and distant galaxies, gravitational lenses, and quasars. See also High - Definition Space Telescope, 12m proposal for 2030 's launch Wide Field Infrared Survey Telescope, may launch in 2020 's List of largest infrared telescopes List of largest optical reflecting telescopes List of space telescopes New Worlds Mission ( proposed occulter for the JWST ) Physical cosmology James Webb Space Telescope timeline Spacecraft design Spacecraft thermal control Solar panels on spacecraft Satellite bus Attitude control Cosmology portal Astronomy portal Notes Jump up ^ `` Baffled '', in this context, means enclosed in a tube in a similar manner to a conventional optical telescope, which helps to stop stray light entering the telescope from the side. For an actual example, see the following link : Freniere, E.R. ( 1981 ). `` First - order design of optical baffles ''. Society of Photo - Optical Instrumentation Engineers ( SPIE ) Conference Series, First - order design of optical baffles. Radiation Scattering in Optical Systems. 257. pp. 19 -- 28. 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Retrieved 13 November 2017. Further reading Jonathan P. Gardner ; et al. ( November 2006 ). `` The James Webb Space Telescope ''. Space Science Reviews. Springer, Netherlands. 123 ( 4 ) : 484 -- 606. arXiv : astro - ph / 0606175. Bibcode : 2006SSRv... 123... 485G. doi : 10.1007 / s11214 - 006 - 8315 - 7. The formal case for JWST science presented in 2006. 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Mather European Space Agency Spaceports Guiana Space Centre Esrange Launch vehicles Ariane 5 Arianespace Soyuz Vega Facilities ESOC ESTEC ESRIN EAC ESAC ECSAT CDF ST - ECF Communications ESTRACK European Data Relay System Programmes Aurora Copernicus Sentinel Cosmic Vision EGNOS ELIPS ExoMars FLPP Galileo LPP Space Situational Awareness Programme Predecessors ELDO ESRO Related topics Arianespace ESA Television EUMETSAT European Space Camp GEWEX Planetary Science Archive Projects and missions Science Solar physics ISEE - 2 ( 1977 -- 87 ) Ulysses ( 1990 -- 2009 ) SOHO ( 1995 -- present ) Cluster II ( 2000 -- present ) Solar Orbiter ( 2019 ) Planetary science Giotto ( 1985 -- 92 ) Huygens ( 1997 -- 2005 ) SMART - 1 ( 2003 -- 06 ) Mars Express ( 2003 -- present ) Rosetta / Philae ( 2004 -- 16 ) Venus Express ( 2005 -- 14 ) ExoMars Trace Gas Orbiter ( 2016 -- present ) BepiColombo ( 2018 ) ExoMars rover ( 2020 ) Jupiter Icy Moons Explorer ( 2022 ) Astronomy and cosmology Cos - B ( 1975 -- 82 ) IUE ( 1978 -- 96 ) EXOSAT ( 1983 -- 86 ) Hipparcos ( 1989 -- 93 ) Hubble ( 1990 -- present ) Eureca ( 1992 -- 93 ) ISO ( 1995 -- 98 ) XMM - Newton ( 1999 -- present ) INTEGRAL ( 2002 -- present ) COROT ( 2006 -- 13 ) Planck ( 2009 -- 13 ) Herschel ( 2009 -- 13 ) Gaia ( 2013 -- present ) CHEOPS ( 2018 ) James Webb ( 2018 ) Euclid ( 2020 ) PLATO ( 2026 ) ATHENA ( 2028 ) LISA ( 2034 ) Earth observation Meteosat First Generation ( 1977 -- 97 ) ERS - 1 ( 1991 -- 2000 ) ERS - 2 ( 1995 -- 2011 ) Meteosat Second Generation ( 2002 -- present ) Envisat ( 2002 -- 12 ) Double Star ( 2003 -- 07 ) MetOp ( 2006 -- present ) GOCE ( 2009 -- 13 ) SMOS ( 2009 -- present ) CryoSat - 2 ( 2010 -- present ) Swarm ( 2013 -- present ) Sentinel - 1 / 1A / 1B ( 2014 -- present ) Sentinel - 2 / 2A / 2B ( 2015 -- present ) Sentinel - 3 / 3A ( 2016 -- present ) Sentinel - 5 Precursor ( 2017 ) ADM - Aeolus ( 2018 ) EarthCARE ( 2019 ) Meteosat Third Generation ( Sentinel - 4 ) ( 2019 ) BIOMASS ( fr ) ( 2021 ) MetOp - SG - A ( 2021 ) SMILE ( 2021 ) MetOp - SG - B ( 2022 ) FLEX ( 2022 ) ISS spaceflight ISS contribution ( 1998 -- present ) Columbus ( 2008 -- present ) Jules Verne ( 2008 ) Cupola ( 2010 -- present ) Johannes Kepler ( 2011 ) Edoardo Amaldi ( 2012 ) Albert Einstein ( 2013 ) Georges Lemaître ( 2014 ) European Robotic Arm ( 2018 ) Telecommunications GEOS 2 ( 1978 ) Olympus - 1 ( 1989 -- 93 ) Artemis ( 2001 -- present ) GIOVE - A ( 2005 -- present ) GIOVE - B ( 2008 -- present ) HYLAS - 1 ( 2010 -- present ) Galileo IOV ( 2011 -- present ) Galileo FOC ( 2014 -- present ) European Data Relay System ( 2016 -- present ) Technology demonstrators ARD ( 1998 ) PROBA ( 2001 -- present ) YES2 ( 2007 ) PROBA2 ( 2009 -- present ) Proba - V ( 2013 -- present ) IXV ( 2015 ) LISA Pathfinder ( 2015 -- 17 ) OPS - SAT ( 2018 ) Lunar Lander ( 2018 ) AIDA ( 2020 ) Proba - 3 ( 2020 ) Cancelled and proposed Columbus Man - Tended Free Flyer CSTS Darwin Mission Don Quijote e. Deorbit EChO Eddington EXPERT Hermes Hopper LOFT Luna 27 Marco Polo MarcoPolo - R Mars sample return mission ODINUS PRIDE SPICA STE - QUEST Failed Cluster CryoSat - 1 GEOS 1 Future missions in italics Category Commons Wikinews WikiProject Canadian Space Agency Canadian astronauts Active Jeremy Hansen David Saint - Jacques Jennifer Sidey Joshua Kutryk Retired Marc Garneau Roberta Bondar Steven MacLean Chris Hadfield Robert Thirsk Bjarni Tryggvason Dafydd Williams Julie Payette Michael McKay Ken Money Other Guy Laliberté ( space tourist ) Satellites Alouette 1 Alouette 2 Anik series BRITE CASSIOPE Hermes ISIS 1 ISIS 2 M3MSat MOST MSAT - 1 NEOSSat Nimiq series RADARSAT - 1 RADARSAT - 2 RADARSAT Constellation ( planned ) SCISAT - 1 Sapphire Other space technology Black Brant rocket Canadarm Canadarm2 Dextre Facilities John H. Chapman Space Centre David Florida Laboratory Saskatoon CSA Building Contractors COM DEV MacDonald, Dettwiler and Associates ( MDA Space Missions / Spar Aerospace ) Magellan Aerospace ( Bristol Aerospace ) Telesat UTIAS - SFL Related institutions Canadian Geospace Monitoring Communications Research Centre Canada Defence Research and Development Canada National Research Council International partners ESA NASA ISRO JAXA SNSB Other Bell TV Churchill Rocket Research Range International Space Station Shaw Direct Future spaceflights Crewed 2018 Soyuz MS - 08 ( March ) Soyuz MS - 09 ( May ) SpX - DM2 ( August ) Soyuz MS - 10 ( September ) Soyuz MS - 11 ( November ) SpaceX lunar tourism mission ( late 2018 ) Starliner DM2 ( late 2018 or early 2019 ) New Shepard Shenzhou - 12 2019 Soyuz MS - 12 ( March ) Soyuz MS - 13 ( September ) 2020 + Orion EM - 2 / Power and Propulsion Bus ( 2022 ) Orion EM - 3 / Habitation module ( 2023 + ) SpaceX crewed BFR ( 2024 for 1st Mars departure ) Robotic 2018 ADM - Aeolus ASNARO - 2 ( 16 January ) BepiColombo ( October ) Boe - OFT ( June ) Chandrayaan - 2 Chang'e 4 CHEOPS Cygnus CRS OA - 9E Cygnus CRS OA - 10E Energia - 100 Es'hail 2 GiSAT - 1 GOES - S GOSAT - 2 / KhalifaSat / Diwata - 2 B / PROITERES - 2 / Stars - AO / AUTcube2 GSAT - 6A ( January ) GSAT - 7A GSAT - 11 GSAT - 20 GSAT - 29 Horizons - 3e HYLAS - 4 ICESat - 2 ICON InSight / Mars Cube One ( 5 May ) IRNSS - 1L Kounotori 7 ( February ) LightSail 2 MicroDragon / RISESAT / ALE / OrigamiSat - 1 / AOBA - VELOX - IV / NEXUS MX - 1E Nauka / European Robotic Arm ( Mid-2018 ) Parker Solar Probe ( 31 July ) PAZ PicSat ( January ) PRISMA Prichal ( Q3 ) Progress MS - 08 Progress MS - 09 Progress MS - 10 SELENE - 2 Sentinel - 3 B SES - 12 SES - 14 SES - 16 SpaceX CRS - 14 SpaceX CRS - 15 SpaceX CRS - 16 SpaceX CRS - 17 SpaceX CRS - 18 SpX - DM1 ( April ) Superbird - B3 TESS ( March ) TRICOM - 1 R TeamIndus / Hakuto ( 6 March ) Tianhe - 1 WGS - 10 2019 Aditya - L1 Chang'e 5 Cygnus CRS OA - 11 EarthCARE ( August ) Ingenio James Webb Space Telescope JCSAT - 17 JCSAT - 18 JDRS Kounotori 8 Orion EM - 1 Lunar Flashlight NEA Scout BioSentinel SkyFire Lunar IceCube CuSP LunaH - Map EQUULEUS OMOTENASHI ArgoMoon Cislunar Explorers CU - E Team Miles Peregrine PTScientists Progress MS - 11 Progress MS - 12 Solar Orbiter ( Feb ) SpaceX CRS - 19 SpaceX CRS - 20 Spektr - RG 2020 AIMlight ( October ) ALOS - 3 ALOS - 4 B330 Chang'e 6 Emirates Mars Mission ( July ) Euclid ExoMars rover / surface platform ( July ) Inmarsat - 6 F1 IXPE Kounotori 9 Mars 2020 Mars Global Remote Sensing Orbiter and Small Rover Mars Terahertz Microsatellite ( July ) Nano - JASMINE NISAR QZS - 1R SES - 17 Space Complex Alpha 2021 DART ( July ) HTV - X1 Lucy Spektr - UV XARM / SLIM ( March ) 2022 + MetOp - SG ( 2021 -- 22 ) DESTINY ( 2022 ) FLEX ( 2022 ) Jupiter Icy Moons Explorer ( 2022 ) SpaceX cargo BFR ( 2022 for 1st Mars departure ) Mars 2022 orbiter ( 2022 ) Psyche ( 2022 ) Chinese large modular space station ( 2022 ) MMX ( 2024 ) Europa Clipper ( 2025 ) PLATO ( 2026 ) Europa Lander ( 2026 + ) Luna - Glob ( 2026 + ) Venera - D ( 2026 + ) WFIRST ( mid-2020s ) ATHENA ( 2028 ) LISA ( 2034 ) Recently Galileo FOCs ( 12 December ) SpaceX CRS - 13 ( 15 December ) Soyuz MS - 07 ( 17 December ) Iridium NEXT ( 23 December ) Shikisai / Tsubame ( 23 December ) LKW - 2 ( 23 December ) Yaogan - 30 G, H, I ( 25 December ) AngoSat 1 ( 26 December ) List of proposed missions to the Moon List of proposed space observatories Retrieved from `` https://en.wikipedia.org/w/index.php?title=James_Webb_Space_Telescope&oldid=818616719 '' Categories : James Webb Space Telescope 2019 in science Flagship Program 2019 in spaceflight Space observatories Infrared telescopes NASA programs Proposed NASA space probes European Space Agency space probes Space program of Canada Goddard Space Flight Center Exoplanet search projects Spacecraft using halo orbits Hidden categories : CS1 maint : Uses authors parameter Webarchive template archiveis links All articles with dead external links Articles with dead external links from September 2010 CS1 maint : Multiple names : authors list Articles containing potentially dated statements from September 2017 All articles containing potentially dated statements Interlanguage link template link number Use dmy dates from January 2013 Talk Contents About Wikipedia Afrikaans Azərbaycanca বাংলা Bân - lâm - gú Български Bosanski Català Čeština Cymraeg Dansk Deutsch Eesti Ελληνικά Español Esperanto فارسی Français 한국어 हिन्दी Bahasa Indonesia Italiano עברית ಕನ್ನಡ Latina Latviešu Lietuvių Limburgs Magyar മലയാളം मराठी Bahasa Melayu Монгол မြန်မာဘာသာ Nederlands 日本 語 Norsk Norsk nynorsk ਪੰਜਾਬੀ پنجابی Polski Português Română Русский Simple English Slovenčina Slovenščina کوردی Српски / srpski Suomi Svenska தமிழ் ไทย Türkçe Українська اردو Tiếng Việt 粵語 中文 Edit links This page was last edited on 4 January 2018, at 16 : 06. 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Question: where are all the science instruments located on the james webb space telescope
Answer: Integrated Science Instrument Module