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By NASA
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
This mosaic showing the Martian surface outside of Jezero Crater was taken by NASA’s Perseverance on Dec. 25, 2024, at the site where the rover cored a sample dubbed “Silver Mountain” from a rock likely formed during Mars’ earliest geologic period.NASA/JPL-Caltech/ASU/MSSS The diversity of rock types along the rim of Jezero Crater offers a wide glimpse of Martian history.
Scientists with NASA’s Perseverance rover are exploring what they consider a veritable Martian cornucopia full of intriguing rocky outcrops on the rim of Jezero Crater. Studying rocks, boulders, and outcrops helps scientists understand the planet’s history, evolution, and potential for past or present habitability. Since January, the rover has cored five rocks on the rim, sealing samples from three of them in sample tubes. It’s also performed up-close analysis of seven rocks and analyzed another 83 from afar by zapping them with a laser. This is the mission’s fastest science-collection tempo since the rover landed on the Red Planet more than four years ago.
Perseverance climbed the western wall of Jezero Crater for 3½ months, reaching the rim on Dec. 12, 2024, and is currently exploring a roughly 445-foot-tall (135-meter-tall) slope the science team calls “Witch Hazel Hill.” The diversity of rocks they have found there has gone beyond their expectations.
“During previous science campaigns in Jezero, it could take several months to find a rock that was significantly different from the last rock we sampled and scientifically unique enough for sampling,” said Perseverance’s project scientist, Katie Stack Morgan of NASA’s Jet Propulsion Laboratory in Southern California. “But up here on the crater rim, there are new and intriguing rocks everywhere the rover turns. It has been all we had hoped for and more.”
One of Perseverance’s hazard cameras captured the rover’s coring drill collecting the “Main River” rock sample on “Witch Hazel Hill” on March 10, 2025, the 1,441st Martian day, or sol, of the mission. NASA/JPL-Caltech That’s because Jezero Crater’s western rim contains tons of fragmented once-molten rocks that were knocked out of their subterranean home billions of years ago by one or more meteor impacts, including possibly the one that produced Jezero Crater. Perseverance is finding these formerly underground boulders juxtaposed with well-preserved layered rocks that were “born” billions of years ago on what would become the crater’s rim. And just a short drive away is a boulder showing signs that it was modified by water nestled beside one that saw little water in its past.
Oldest Sample Yet?
Perseverance collected its first crater-rim rock sample, named “Silver Mountain,” on Jan. 28. (NASA scientists informally nickname Martian features, including rocks and, separately, rock samples, to help keep track of them.) The rock it came from, called “Shallow Bay,” most likely formed at least 3.9 billion years ago during Mars’ earliest geologic period, the Noachian, and it may have been broken up and recrystallized during an ancient meteor impact.
About 360 feet (110 meters) away from that sampling site is an outcrop that caught the science team’s eye because it contains igneous minerals crystallized from magma deep in the Martian crust. (Igneous rocks can form deep underground from magma or from volcanic activity at the surface, and they are excellent record-keepers — particularly because mineral crystals within them preserve details about the precise moment they formed.) But after two coring attempts (on Feb. 4 and Feb. 8) fizzled due to the rock being so crumbly, the rover drove about 520 feet (160 meters) northwest to another scientifically intriguing rock, dubbed “Tablelands.”
Data from the rover’s instruments indicates that Tablelands is made almost entirely of serpentine minerals, which form when large amounts of water react with iron- and magnesium-bearing minerals in igneous rock. During this process, called serpentinization, the rock’s original structure and mineralogy change, often causing it to expand and fracture. Byproducts of the process sometimes include hydrogen gas, which can lead to the generation of methane in the presence of carbon dioxide. On Earth, such rocks can support microbial communities.
Coring Tablelands went smoothly. But sealing it became an engineering challenge.
Sealing the “Green Gardens” sample — collected by NASA’s Perseverance Mars rover from a rock dubbed “Tablelands” along the rim of Jezero Crater on Feb. 16, 2025 — pre-sented an engineering challenge. The sample was finally sealed on March 2.NASA/JPL-Caltech/ASU/MSSS Flick Maneuver
“This happened once before, when there was enough powdered rock at the top of the tube that it interfered with getting a perfect seal,” said Kyle Kaplan, a robotics engineer at JPL. “For Tablelands, we pulled out all the stops. Over 13 sols,” or Martian days, “we used a tool to brush out the top of the tube 33 times and made eight sealing attempts. We even flicked it a second time.”
During a flick maneuver, the sample handling arm — a little robotic arm in the rover’s belly — presses the tube against a wall inside the rover, then pulls the tube away, causing it to vibrate. On March 2, the combination of flicks and brushings cleaned the tube’s top opening enough for Perseverance to seal and store the serpentine-laden rock sample.
Eight days later, the rover had no issues sealing its third rim sample, from a rock called “Main River.” The alternating bright and dark bands on the rock were like nothing the science team had seen before.
Up Next
Following the collection of the Main River sample, the rover has continued exploring Witch Hazel Hill, analyzing three more rocky outcrops (“Sally’s Cove,” “Dennis Pond,” and “Mount Pearl”). And the team isn’t done yet.
“The last four months have been a whirlwind for the science team, and we still feel that Witch Hazel Hill has more to tell us,” said Stack. “We’ll use all the rover data gathered recently to decide if and where to collect the next sample from the crater rim. Crater rims — you gotta love ’em.”
More About Perseverance
A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover is characterizing the planet’s geology and past climate, to help pave the way for human exploration of the Red Planet and is the first mission to collect and cache Martian rock and regolith.
NASA’s Mars Sample Return Program, in cooperation with ESA (European Space Agency), is designed to send spacecraft to Mars to collect these sealed samples from the surface and return them to Earth for in-depth analysis.
The Mars 2020 Perseverance mission is part of NASA’s Mars Exploration Program portfolio and the agency’s Moon to Mars exploration approach, which includes Artemis missions to the Moon that will help prepare for human exploration of the Red Planet.
NASA’s Jet Propulsion Laboratory, managed for the agency by Caltech in Pasadena, California, built and manages operations of the Perseverance rover.
For more about Perseverance:
https://science.nasa.gov/mission/mars-2020-perseverance
News Media Contacts
DC Agle
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-9011
agle@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
2025-051
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Last Updated Apr 10, 2025 Related Terms
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5 min read Perseverance Rover Witnesses One Martian Dust Devil Eating Another
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A Martian dust devil can be seen consuming its smaller friend in this short video made of images taken at the rim of Jezero Crater by NASA’s Perseverance Mars rover on Jan. 25, 2025. NASA/JPL-Caltech/SSI The six-wheeled explorer recently captured several Red Planet mini-twisters spinning on the rim of Jezero Crater.
A Martian dust devil can be seen consuming a smaller one in this short video made of images taken by a navigation camera aboard NASA’s Perseverance Mars rover. These swirling, sometimes towering columns of air and dust are common on Mars. The smaller dust devil’s demise was captured during an imaging experiment conducted by Perseverance’s science team to better understand the forces at play in the Martian atmosphere.
When the rover snapped these images from about 0.6 miles (1 kilometer) away, the larger dust devil was approximately 210 feet (65 meters) wide, while the smaller, trailing dust devil was roughly 16 feet (5 meters) wide. Two other dust devils can also be seen in the background at left and center. Perseverance recorded the scene Jan. 25 as it explored the western rim of Mars’ Jezero Crater at a location called “Witch Hazel Hill.”
“Convective vortices — aka dust devils — can be rather fiendish,” said Mark Lemmon, a Perseverance scientist at the Space Science Institute in Boulder, Colorado. “These mini-twisters wander the surface of Mars, picking up dust as they go and lowering the visibility in their immediate area. If two dust devils happen upon each other, they can either obliterate one another or merge, with the stronger one consuming the weaker.”
While exploring the rim of Jezero Crater on Mars, NASA’s Perseverance rover captured new images of multiple dust devils in January 2025. These captivating phenomena have been documented for decades by the agency’s Red Planet robotic explorers. NASA/JPL-Caltech/LANL/CNES/CNRS/INTA-CSIC/Space Science Institute/ISAE-Supaero/University of Arizona Science of Whirlwinds
Dust devils are formed by rising and rotating columns of warm air. Air near the planet’s surface becomes heated by contact with the warmer ground and rises through the denser, cooler air above. As other air moves along the surface to take the place of the rising warmer air, it begins to rotate. When the incoming air rises into the column, it picks up speed like a spinning ice skater bringing their arms closer to their body. The air rushing in also picks up dust, and a dust devil is born.
“Dust devils play a significant role in Martian weather patterns,” said Katie Stack Morgan, project scientist for the Perseverance rover at NASA’s Jet Propulsion Laboratory in Southern California. “Dust devil study is important because these phenomena indicate atmospheric conditions, such as prevailing wind directions and speed, and are responsible for about half the dust in the Martian atmosphere.”
NASA’s Viking 1 orbiter captured this Martian dust devil casting a shadow on Aug. 1, 1978. During the 15-second interval between the two images, the dust devil moved toward the northeast (toward the upper right) at a rate of about 59 feet (18 meters) per second. NASA/JPL-Caltech/MSSS Since landing in 2021, Perseverance has imaged whirlwinds on many occasions, including one on Sept. 27, 2021, where a swarm of dust devils danced across the floor of Jezero Crater and the rover used its SuperCam microphone to record the first sounds of a Martian dust devil.
NASA’s Viking orbiters, in the 1970s, were the first spacecraft to photograph Martian dust devils. Two decades later, the agency’s Pathfinder mission was the first to image one from the surface and even detected a dust devil passing over the lander. Twin rovers Spirit and Opportunity managed to capture their fair share of dusty whirlwinds. Curiosity, which is exploring a location called Mount Sharp in Gale Crater on the opposite side of the Red Planet as Perseverance, sees them as well.
Capturing a dust devil image or video with a spacecraft takes some luck. Scientists can’t predict when they’ll appear, so Perseverance routinely monitors in all directions for them. When scientists see them occur more frequently at a specific time of day or approach from a certain direction, they use that information to focus their monitoring to try to catch additional whirlwinds.
“If you feel bad for the little devil in our latest video, it may give you some solace to know the larger perpetrator most likely met its own end a few minutes later,” said Lemmon. “Dust devils on Mars only last about 10 minutes.”
More About Perseverance
A key objective of Perseverance’s mission on Mars is astrobiology, including caching samples that may contain signs of ancient microbial life. The rover is characterizing the planet’s geology and past climate, to help pave the way for human exploration of the Red Planet and as the first mission to collect and cache Martian rock and regolith.
NASA’s Mars Sample Return Program, in cooperation with ESA (European Space Agency), is designed to send spacecraft to Mars to collect these sealed samples from the surface and return them to Earth for in-depth analysis.
The Mars 2020 Perseverance mission is part of NASA’s Mars Exploration Program (MEP) portfolio and the agency’s Moon to Mars exploration approach, which includes Artemis missions to the Moon that will help prepare for human exploration of the Red Planet.
NASA’s Jet Propulsion Laboratory, which is managed for the agency by Caltech, built and manages operations of the Perseverance rover.
For more about Perseverance:
https://science.nasa.gov/mission/mars-2020-perseverance
News Media Contacts
DC Agle
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-9011
agle@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
2025-047
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Last Updated Apr 03, 2025 Related Terms
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By NASA
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
At left is NASA’s Perseverance Mars rover, with a circle indicating the location of the calibration target for the rover’s SHERLOC instrument. At right is a close-up of the calibration target. Along the bottom row are five swatches of spacesuit materials that scientists are studying as they de-grade.NASA/JPL-Caltech/MSSS The rover carries several swatches of spacesuit materials, and scientists are assessing how they’ve held up after four years on the Red Planet.
NASA’s Perseverance rover landed on Mars in 2021 to search for signs of ancient microbial life and to help scientists understand the planet’s climate and geography. But another key objective is to pave the way for human exploration of Mars, and as part of that effort, the rover carries a set of five spacesuit material samples. Now, after those samples have endured four years of exposure on Mars’ dusty, radiation-soaked surface, scientists are beginning the next phase of studying them.
The end goal is to predict accurately the usable lifetime of a Mars spacesuit. What the agency learns about how the materials perform on Mars will inform the design of future spacesuits for the first astronauts on the Red Planet.
This graphic shows an illustration of a prototype astronaut suit, left, along with suit samples included aboard NASA’s Perseverance rover. They are the first spacesuit materials ever sent to Mars. NASA “This is one of the forward-looking aspects of the rover’s mission — not just thinking about its current science, but also about what comes next,” said planetary scientist Marc Fries of NASA’s Johnson Space Center in Houston, who helped provide the spacesuit materials. “We’re preparing for people to eventually go and explore Mars.”
The swatches, each three-quarters of an inch square (20 millimeters square), are part of a calibration target used to test the settings of SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics and Chemicals), an instrument on the end of Perseverance’s arm.
The samples include a piece of polycarbonate helmet visor; Vectran, a cut-resistant material used for the palms of astronaut gloves; two kinds of Teflon, which has dust-repelling nonstick properties; and a commonly used spacesuit material called Ortho-Fabric. This last fabric features multiple layers, including Nomex, a flame-resistant material found in firefighter outfits; Gore-Tex, which is waterproof but breathable; and Kevlar, a strong material used in bulletproof vests that makes spacesuits more rip-resistant.
Martian Wear and Tear
Mars is far from hospitable. It has freezing temperatures, fine dust that can stick to solar panels and spacesuits (causing wear and tear on the latter), and a surface rife with perchlorates, a kind of corrosive salt that can be toxic to humans.
There’s also lots of solar radiation. Unlike Earth, which has a magnetic field that deflects much of the Sun’s radiation, Mars lost its magnetic field billions of years ago, followed by much of its atmosphere. Its surface has little protection from the Sun’s ultraviolet light (which is why researchers have looked into how rock formations and caves could provide astronauts some shielding).
“Mars is a really harsh, tough place,” said SHERLOC science team member Joby Razzell Hollis of the Natural History Museum in London. “Don’t underestimate that — the radiation in particular is pretty nasty.”
Razzell Hollis was a postdoctoral fellow at NASA’s Jet Propulsion Laboratory in Southern California from 2018 to 2021, where he helped prepare SHERLOC for arrival on Mars and took part in science operations once the rover landed. A materials scientist, Razzell Hollis has previously studied the chemical effects of sunlight on a new kind of solar panel made from plastic, as well as on plastic pollution floating in the Earth’s oceans.
He likened those effects to how white plastic lawn chairs become yellow and brittle after years in sunlight. Roughly the same thing happens on Mars, but the weathering likely happens faster because of the high exposure to ultraviolet light there.
The key to developing safer spacesuit materials will be understanding how quickly they would wear down on the Martian surface. About 50% of the changes SHERLOC witnessed in the samples happened within Perseverance’s first 200 days on Mars, with the Vectran appearing to change first.
Another nuance will be figuring out how much solar radiation different parts of a spacesuit will have to withstand. For example, an astronaut’s shoulders will be more exposed — and likely encounter more radiation — than his or her palms.
Next Steps
The SHERLOC team is working on a science paper detailing initial data on how the samples have fared on Mars. Meanwhile, scientists at NASA Johnson are eager to simulate that weathering in special chambers that mimic the carbon dioxide atmosphere, air pressure, and ultraviolet light on the Martian surface. They could then compare the results generated on Earth while putting the materials to the test with those seen in the SHERLOC data. For example, the researchers could stretch the materials until they break to check if they become more brittle over time.
“The fabric materials are designed to be tough but flexible, so they protect astronauts but can bend freely,” Fries said. “We want to know the extent to which the fabrics lose their strength and flexibility over time. As the fabrics weaken, they can fray and tear, allowing a spacesuit to leak both heat and air.”
More About Perseverance
A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover is characterizing the planet’s geology and past climate, to help pave the way for human exploration of the Red Planet, and is the first mission to collect and cache Martian rock and regolith.
NASA’s Mars Sample Return Program, in cooperation with ESA (European Space Agency), is designed to send spacecraft to Mars to collect these sealed samples from the surface and return them to Earth for in-depth analysis.
The Mars 2020 Perseverance mission is part of NASA’s Mars Exploration Program (MEP) portfolio and the agency’s Moon to Mars exploration approach, which includes Artemis missions to the Moon that will help prepare for human exploration of the Red Planet.
NASA’s Jet Propulsion Laboratory, which is managed for the agency by Caltech in Pasadena, California, built and manages operations of the Perseverance rover.
For more about Perseverance:
News Media Contacts
Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
andrew.c.good@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
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Last Updated Mar 26, 2025 Related Terms
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By USH
Despite the MSM at the moment keeps a low profile in informing the public about the unidentified drones, the 'drone mystery' is still going on with hundreds of drones spotted across the US, especially the eastern United States.
Check out the size of this high-tech drone, estimated to be around 25-30 feet in length, possibly even larger. It was recently filmed flying low over New Jersey. (Watch the video of the craft at the bottom of the article.)
The mystery surrounding unidentified drones continues to capture attention, particularly across the eastern United States. While mainstream media (MSM) maintains a low profile in reporting on these occurrences, sightings persist, with hundreds of drones reported in various regions.
Officials have repeatedly assured the public that these drones pose no threat to national security. However, skepticism remains high, as the government has yet to provide a comprehensive explanation, leaving many feeling left in the dark.
Dr. Steven Greer recently made a prediction during an interview with Newsmax's Rob Finnerty. He claimed that the drone crisis is likely to escalate "within the next 30 days." According to Greer, the notion of a supposed "alien invasion" is a deliberate distraction designed to obscure the true nature of extraterrestrial encounters, which he asserts have been ongoing for decades. This statement has sparked further speculation among those following developments in the UFO community.
Adding to the anticipation, investigative journalist Ross Coulthart has forecasted that 2025 will mark a turning point in public awareness about extraterrestrial matters. Describing the current period as “the calm before the storm,” Coulthart envisions transformative revelations in the coming year.
Michael Salla, Ph.D., another figure in the disclosure movement, has reported information from a retired U.S. Army serviceman, identified as JP. According to JP, factions within the U.S. military, referred to as "White Hats," along with an international coalition known as the “Earth Alliance,” are preparing to disclose advanced alien technology to the public. This advanced technology, allegedly hidden for decades by shadowy "deep state" organizations and defense contractors, includes three medium-sized cigar-shaped spacecraft and numerous unidentified aerial phenomena (UAPs) stored in an underground facility in Tampa, Florida. These alleged alien-tech craft are said to possess advanced stealth capabilities, allowing them to blend seamlessly with their surroundings.
As part of a broader disclosure strategy, the unveiling of these craft is intended to prepare the public for even larger extraterrestrial revelations in the months ahead.
It seems as two opposing forces are at play:
The Deep State: Allegedly leveraging drones and orbs sightings as part of a staged operation to manipulate public perception to fabricate the illusion of an alien invasion in an attempt to hide the real truth about extraterrestrial encounters and maintain the secrecy around covert programs and maintain control over advanced technologies acquired over the past 70 years.
The Earth Alliance: Seeking to reveal genuine alien technology obtained from real UFO crashes, confirming the existence of extraterrestrial life and promoting transparency.
Whether these predictions will materialize remains to be seen, but they have undeniably heightened public interest in what lies ahead. View the full article
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By NASA
Mars: Perseverance (Mars 2020) Perseverance Home Mission Overview Rover Components Mars Rock Samples Where is Perseverance? Ingenuity Mars Helicopter Mission Updates Science Overview Objectives Instruments Highlights Exploration Goals News and Features Multimedia Perseverance Raw Images Images Videos Audio More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions The Solar System The Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets Asteroids, Comets & Meteors The Kuiper Belt The Oort Cloud 3 min read
Perseverance Blasts Past the Top of Jezero Crater Rim
This SuperCam Remote Micro-Imager (RMI) mosaic shows part of the target “Duran,” observed on Sol 1357 near the top of Jezero crater’s rim. It was processed using a color-enhancing Gaussian stretch algorithm. NASA/JPL-Caltech/LANL/CNES/IRAP. I have always loved the mountains. Growing up on the flat plains of Midwestern USA, every summer I looked forward to spending a few days on alpine trails while on vacation. Climbing upward from the trailhead, the views changed constantly. After climbing a short distance, the best views were often had by looking back down on where we had started. As we climbed higher, views of the valleys below eventually became shrouded in haze. Near the top we got our last views of the region behind us; then it disappeared from view as we hiked over the pass and started down the other side. Approaching the summit held a special reward, as the regions beyond the pass slowly revealed themselves. Frequent stops to catch our breath during our ascent were used to check the map to identify the new peaks and other features that came into view. Sometimes the pass was an exciting gateway to a whole new area to explore.
This ever-changing landscape has been our constant companion over the last five months as Perseverance first climbed out of Neretva Vallis, then past “Dox Castle,” and “Pico Turquino.” We stopped at “Faraway Rock” on Sol 1282 to get a panorama of the crater floor. More recently, we could see many more peaks of the crater rim. As Perseverance crested the summit of “Lookout Hill,” half a mile (800 meters) above the traverse’s lowest point, we got our first views beyond the crater rim, out into the great unknown expanse of Mars’ Nili Planum, including the upper reaches of Neretva Vallis and the locations of two other candidate landing sites that were once considered for Perseverance. As the rover crested the summit, Mastcam-Z took a large panoramic mosaic, and team members are excitedly poring over the images, looking at all the new features. With Perseverance’s powerful cameras we can analyze small geological features such as boulders, fluvial bars, and dunes more than 5 miles (8 kilometers) distant, and major features like mountains up to 35 miles (60 kilometers) away. One of our team members excitedly exclaimed, “This is an epic moment in Mars exploration!”
While Curiosity has been climbing “Mount Sharp” for 10 years, and Spirit and Opportunity explored several smaller craters, no extraterrestrial rover has driven out of such a huge crater as Jezero to see a whole new “continent” ahead. We are particularly excited because it is potentially some of the most ancient surface on the Red Planet. Let’s go explore it!
Perseverance is now in Gros Morne quad, named for a beautiful Canadian national park in Newfoundland, and we will be naming our targets using locations and features in the national park. For the drive ahead, described in a video in a recent press release, our next destination is on the lower western edge of the Jezero crater rim at a region named “Witch Hazel Hill.”
Perseverance made more than 250 meters of progress over the weekend (about 820 feet) and is already at the upper part of Witch Hazel Hill, a location called “South Arm.” Much of the climb up the crater rim was on sandy material without many rocks to analyze. Witch Hazel Hill appears to have much more exposed rock, and the science team is excited about the opportunity for better views and analyses of the geology directly beneath our wheels.
Written by Roger C. Wiens, Principal Investigator of the SuperCam instrument, Purdue University
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Last Updated Dec 19, 2024 Related Terms
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