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Europa Clipper's Thermal Imager Delivered to JPL – NASA's Europa Clipper
Europa Clipper's Thermal Imager Delivered to JPL – NASA's Europa Clipper

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Europa Clipper

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| May 26, 2022

Europa Clipper's Thermal Imager Delivered to JPL

Engineers prepare Europa Clipper's thermal imager for a series of functional tests in a clean room at NASA's Jet Propulsion Laboratory in Southern California, following the delivery of the Arizona State University-designed and -built instrument after months of testing. The instrument, called the Europa Thermal Emission Imaging System (E-THEMIS), will measure the surface temperature of Jupiter’s moon Europa. Credit: NASA/JPL-Caltech

After months of testing, an Arizona State University-designed and -built instrument to measure the surface temperature of Jupiter’s moon Europa has arrived at NASA’s Jet Propulsion Laboratory in Southern California. There it will join eight other instruments and become an integral part of the agency’s Europa Clipper spacecraft.
The instrument is the Europa Thermal Emission Imaging System (E-THEMIS) led by Philip Christensen of Arizona State University’s School of Earth and Space Exploration.
E-THEMIS is an infrared camera designed to map temperatures across Europa’s surface. Its images, taken in three heat-sensitive bands, will help scientists find clues about Europa’s geological activity, including regions where the moon's presumed ocean may lie near the surface. While Europa is slightly smaller than Earth's Moon, scientists think its ocean may hold twice the volume of Earth's oceans.

In January 2022 the Arizona State University team took test images with the E-THEMIS camera from the rooftop of the Interdisciplinary Science and Technology Building 4 on the Arizona State University Tempe campus. E-THEMIS made temperature-sensing images at midday, in late afternoon, and after sunset. These images revealed how the temperature of the buildings and landscape responded to changes in sunlight as the day progressed. 

Besides identifying any warmer areas on Europa's surface, E-THEMIS images will also help scientists determine the physical state of the icy surface.
NASA's Europa Clipper Spacecraft Kicks Assembly Into High Gear – NASA's Europa Clipper
This time-lapse video follows NASA’s Europa Clipper spacecraft as it moves into the storied High Bay 1 clean room from a smaller clean room at the agency’s Jet Propulsion Laboratory in Southern California. The multiday transport between rooms at the Lab’s Spacecraft Assembly Facility and the unwrapping and positioning of the spacecraft core required thorough planning and careful choreography. In this new location, engineers and technicians will complete assembly of the spacecraft in preparation for its launch to Jupiter’s moon Europa in October 2024. Credit: NASA/JPL-Caltech

Several of Europa Clipper’s science instruments already have been completed and will be installed on the spacecraft at JPL. Most recently, the plasma-detection instrument, called the Plasma Instrument for Magnetic Sounding, and the Europa Imaging System wide-angle camera arrived from the Johns Hopkins Applied Physics Laboratory (APL), in Laurel, Maryland. The thermal-emission imaging instrument, called E-THEMIS, and the ultraviolet spectrograph, Europa-UVS, have already been installed on the spacecraft’s nadir deck, which will support many of the instrument sensors by stabilizing them to ensure they are oriented correctly. 

Engineers and technicians use a crane to lift the core of NASA’s Europa Clipper spacecraft in the High Bay 1 clean room of JPL’s Spacecraft Assembly Facility. Credits: NASA/JPL-Caltech

Fabricated at JPL, this key piece of hardware will soon move into the Spacecraft Assembly Facility’s High Bay 1, the same clean room where historic missions such as Galileo, Cassini, and all of NASA’s Mars rovers were built.
Also moving soon to High Bay 1 will be the aluminum electronics vault, which will be bolted to the main body of the spacecraft, protecting the electronics inside from Jupiter’s intense radiation. The electronics enable Europa Clipper’s computer to communicate with the spacecraft’s antennae, science instruments, and the subsystems that will keep them alive.

Europa Clipper’s vault, with the nadir deck attached, is prepared for a move to the High Bay 1 clean room of the Spacecraft Assembly Facility at JPL. The vault will protect the spacecraft’s electronics, while the nadir deck will provide a stable platform for science instruments.
Europa Clipper Toy Bricks Model – NASA's Europa Clipper
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Surface of Jupiter's Moon Europa Churned by Small Impacts – NASA's Europa Clipper
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NASA Official/Program Executive: 
Dave Lavery

NASA Official/Program Scientist: 
Curt Niebur

Media Contact: 
Gretchen McCartney

Public Engagement Manager: 
Heather Doyle

Public Engagement Lead: 
Laurance Fauconnet

Social Media Lead: 
Bill Dunford

Science Writer: 
Sandy Marshall

Science Writer: 
Amanda Barnett
MASPEX | Instruments – NASA's Europa Clipper
E-THEMIS

Europa-UVS

MISE

ECM

PIMS

Gravity/Radio Science

REASON

MASPEX

SUDA

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Europa Clipper's Surface Dust Analyzer Instrument Delivered to JPL – NASA's Europa Clipper
Europa Clipper's Surface Dust Analyzer Instrument Delivered to JPL – NASA's Europa Clipper

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Europa Clipper

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| September 21, 2022

Europa Clipper's Surface Dust Analyzer Instrument Delivered to JPL 

Europa Clipper’s SUrface Dust Analyzer instrument, called SUDA, was delivered to NASA’s Jet Propulsion Laboratory (JPL) in September 2022. Seen in this image are engineers from JPL and the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado Boulder, who built the instrument. Credit: NASA/JPL-Caltech 

In less than a decade, NASA technology will travel to Jupiter’s moon Europa—a cold moon where a thick crust of ice covering the surface obscures a potentially vast ocean of saltwater below. 
That piece of technology is the Europa SUrface Dust Analyzer (SUDA). The instrument was designed and built by a team of scientists and engineers at the University of Colorado Boulder’s Laboratory for Atmospheric and Space Physics (LASP). It’s part of NASA’s larger Europa Clipper mission, which will investigate the icy moon.
LASP shipped SUDA this month to NASA’s Jet Propulsion Laboratory (JPL) in southern California, which leads the mission. It and eight other scientific instruments are set to launch in October 2024 aboard the Europa Clipper spacecraft, beginning a nearly five-and-a-half-year journey to Jupiter, where it will conduct multiple flybys of Europa.
The instrument’s sensor head, which is coated with an extremely thin layer of 99.99% gold, is about the size of a marching drum and weighs nearly 35 pounds. As Europa Clipper flies by its namesake moon, SUDA will collect and analyze particles ejected from the moon’s surface by tiny meteorites. JPL scientist and SUDA co-investigator Murthy Gudipati compared the instrument to a shark swimming with its mouth open. Scientists can also use data from the instrument to track where on the surface those particles launched from.
Collecting and analyzing tiny particles ejected from Europa’s surface
Gravity/Radio Science | Instruments – NASA's Europa Clipper
Europa’s flexing is determined by how much water the moon contains, how close water is to the surface, and other factors. That tells scientists the moon’s ice thickness.
Meet the Team
Meet the Team
Erwan Mazarico is the gravity team lead and a planetary scientist at NASA’s Goddard Space Flight Center. “The mission’s goal is to see if Europa has been or could be habitable.” Doing so requires seeing inside Europa. “That’s confirming the global ocean, the average thickness of the ice shell, and potential variability in the ice shell. For instance, the presence of lakes within the ice shell may leave a gravity signature.”
Studying Europa requires devotion to teamwork, said Julie Castillo-Rogez, a planetary geophysicist at JPL and member of the gravity science team. “You need complementary science instruments whose teams exchange information and help each other,” she said. “When I joined the team in 2020, it was cool to find the mission’s synergy was already a well-oiled machine.”

Erwan Mazarico

Team Leader

NASA Goddard Space Flight Center

Where is the Gravity/Radio Science instrument on Clipper?

Gravity/Radio Science instrument highlighted in red on the Europa Clipper Spacecraft.

EIS

E-THEMIS

Europa-UVS

MISE

ECM

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Managed by the Jet Propulsion Laboratory
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NASA Official/Program Executive: 
Dave Lavery

NASA Official/Program Scientist: 
Curt Niebur

Media Contact: 
Gretchen McCartney

Public Engagement Manager: 
Heather Doyle

Public Engagement Lead: 
Laurance Fauconnet

Social Media Lead: 
Bill Dunford

Science Writer: 
Sandy Marshall

Science Writer: 
Amanda Barnett
SUDA | Instruments – NASA's Europa Clipper
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Discovering Alien Oceans: Magnetism – NASA's Europa Clipper
Discovering Alien Oceans: Magnetism – NASA's Europa Clipper

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Discovering Alien Oceans: Magnetism

Jupiter's moon Europa poses exciting new possibilities for NASA's search for life beyond Earth. While there's still much to uncover about Europa, scientists have long known that liquid water exists beneath its icy shell. But how?
In this classroom activity, students will explore the relationship between magnetism and electricity to model how scientists determined that Europa has a magnetic field and a conductive liquid, subsurface ocean.
View the full classroom activity on the JPL Education website ›

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NASA Official/Program Executive: 
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Public Engagement Manager: 
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Public Engagement Lead: 
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Social Media Lead: 
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