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By NASA
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
In addition to drilling rock core samples, the science team has been grinding its way into rocks to make sense of the scientific evidence hiding just below the surface.
NASA’s Perseverance rover uses an abrading bit to get below the surface of a rocky out-crop nicknamed “Kenmore” on June 10. The eight images that make up this video were taken approximately one minute apart by one of the rover’s front hazard-avoidance cameras. NASA/JPL-Caltech On June 3, NASA’s Perseverance Mars rover ground down a portion of a rock surface, blew away the resulting debris, and then went to work studying its pristine interior with a suite of instruments designed to determine its mineralogic makeup and geologic origin. “Kenmore,” as nicknamed by the rover science team, is the 30th Martian rock that Perseverance has subjected to such in-depth scrutiny, beginning with drilling a two-inch-wide (5-centimeter-wide) abrasion patch.
“Kenmore was a weird, uncooperative rock,” said Perseverance’s deputy project scientist, Ken Farley from Caltech in Pasadena, California. “Visually, it looked fine — the sort of rock we could get a good abrasion on and perhaps, if the science was right, perform a sample collection. But during abrasion, it vibrated all over the place and small chunks broke off. Fortunately, we managed to get just far enough below the surface to move forward with an analysis.”
The science team wants to get below the weathered, dusty surface of Mars rocks to see important details about a rock’s composition and history. Grinding away an abrasion patch also creates a flat surface that enables Perseverance’s science instruments to get up close and personal with the rock.
This close-up view of an abrasion showing distinctive “tool marks” created by the Perseverance’s abrading bit was acquired on June 5. The image was taken from approximately 2.76 inches (7 centimeters) away by the rover’s WATSON imager. NASA/JPL-Caltech/MSSS Perseverance’s gold-colored abrading bit takes center stage in this image of the rover’s drill taken by the Mastcam-Z instrument on Aug. 2, 2021, the 160th day of the mission to Mars.NASA/JPL-Caltech/ASU/MSSS Time to Grind
NASA’s Mars Exploration Rovers, Spirit and Opportunity, each carried a diamond-dust-tipped grinder called the Rock Abrasion Tool (RAT) that spun at 3,000 revolutions per minute as the rover’s robotic arm pushed it deeper into the rock. Two wire brushes then swept the resulting debris, or tailings, out of the way. The agency’s Curiosity rover carries a Dust Removal Tool, whose wire bristles sweep dust from the rock’s surface before the rover drills into the rock. Perseverance, meanwhile, relies on a purpose-built abrading bit, and it clears the tailings with a device that surpasses wire brushes: the gaseous Dust Removal Tool, or gDRT.
“We use Perseverance’s gDRT to fire a 12-pounds-per-square-inch (about 83 kilopascals) puff of nitrogen at the tailings and dust that cover a freshly abraded rock,” said Kyle Kaplan, a robotic engineer at NASA’s Jet Propulsion Laboratory in Southern California. “Five puffs per abrasion — one to vent the tanks and four to clear the abrasion. And gDRT has a long way to go. Since landing at Jezero Crater over four years ago, we’ve puffed 169 times. There are roughly 800 puffs remaining in the tank.” The gDRT offers a key advantage over a brushing approach: It avoids any terrestrial contaminants that might be on a brush from getting on the Martian rock being studied.
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This video captures a test of Perseverance’s Gaseous Dust Removal Tool (gDRT) in a vacuum chamber at NASA’s Jet Propulsion Laboratory in August 2020. The tool fires puffs of nitrogen gas at the tailings and dust that cover a rock after it has been abraded by the rover.NASA/JPL-Caltech Having collected data on abraded surfaces more than 30 times, the rover team has in-situ science (studying something in its original place or position) collection pretty much down. After gDRT blows the tailings away, the rover’s WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) imager (which, like gDRT, is at the end of the rover’s arm) swoops in for close-up photos. Then, from its vantage point high on the rover’s mast, SuperCam fires thousands of individual pulses from its laser, each time using a spectrometer to determine the makeup of the plume of microscopic material liberated after every zap. SuperCam also employs a different spectrometer to analyze the visible and infrared light that bounces off the materials in the abraded area.
“SuperCam made observations in the abrasion patch and of the powdered tailings next to the patch,” said SuperCam team member and “Crater Rim” campaign science lead, Cathy Quantin-Nataf of the University of Lyon in France. “The tailings showed us that this rock contains clay minerals, which contain water as hydroxide molecules bound with iron and magnesium — relatively typical of ancient Mars clay minerals. The abrasion spectra gave us the chemical composition of the rock, showing enhancements in iron and magnesium.”
Later, the SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals) and PIXL (Planetary Instrument for X-ray Lithochemistry) instruments took a crack at Kenmore, too. Along with supporting SuperCam’s discoveries that the rock contained clay, they detected feldspar (the mineral that makes much of the Moon brilliantly bright in sunlight). The PIXL instrument also detected a manganese hydroxide mineral in the abrasion — the first time this type of material has been identified during the mission.
With Kenmore data collection complete, the rover headed off to new territories to explore rocks — both cooperative and uncooperative — along the rim of Jezero Crater.
“One thing you learn early working on Mars rover missions is that not all Mars rocks are created equal,” said Farley. “The data we obtain now from rocks like Kenmore will help future missions so they don’t have to think about weird, uncooperative rocks. Instead, they’ll have a much better idea whether you can easily drive over it, sample it, separate the hydrogen and oxygen contained inside for fuel, or if it would be suitable to use as construction material for a habitat.”
Long-Haul Roving
On June 19 (the 1,540th Martian day, or sol, of the mission), Perseverance bested its previous record for distance traveled in a single autonomous drive, trekking 1,348 feet (411 meters). That’s about 210 feet (64 meters) more than its previous record, set on April 3, 2023 (Sol 753). While planners map out the rover’s general routes, Perseverance can cut down driving time between areas of scientific interest by using its self-driving system, AutoNav.
“Perseverance drove 4½ football fields and could have gone even farther, but that was where the science team wanted us to stop,” said Camden Miller, a rover driver for Perseverance at JPL. “And we absolutely nailed our stop target location. Every day operating on Mars, we learn more on how to get the most out of our rover. And what we learn today future Mars missions won’t have to learn tomorrow.”
News Media Contact
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
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Last Updated Jun 25, 2025 Related Terms
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By NASA
A group of students huddle around two of their classmates using virtual reality headsets to get an up-close view of a rocket during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025. Credit: NASA/Chris Hartenstine NASA’s Glenn Research Center headed to the ballpark for Education Day with the Lake Erie Crushers on May 15. NASA Glenn staff showcased the science of NASA using portable wind tunnel demonstrations, virtual reality simulations, and other interactives inspired by NASA’s Artemis missions.
NASA Glenn Research Center engineers Heath Reising, far left, and Dave Saunders, far right, provide a wind tunnel demonstration to a group of aspiring STEM professionals during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025.Credit: NASA/Chris Hartenstine Guests snapped photos at an “out-of-this-world” selfie station and learned how to take the first step toward a career in the aerospace or space industry through NASA’s internship programs. The mid-day game welcomed 3,575 fans, many who came from local schools on field trips for the special day.
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By NASA
At COSI’s Big Science Celebration on Sunday, May 4, 2025, a young visitor uses one of NASA Glenn Research Center’s virtual reality headsets to immerse herself in a virtual environment. Credit: NASA/Lily Hammel NASA’s Glenn Research Center joined the Center for Science and Industry (COSI) Big Science Celebration on the museum’s front lawn in Columbus, Ohio, on May 4. This event centered on science activities by STEM professionals, researchers, and experts from Central Ohio — and despite chilly, damp weather, it drew more than 20,000 visitors.
At COSI’s Big Science Celebration on Sunday, May 4, 2025, a young visitor steps out of the rain and into NASA Glenn Research Center’s booth to check out the Graphics and Visualization Lab’s augmented reality fluid flow table that allows users to virtually explore a model of the International Space Station. Credit: NASA/Lily Hammel NASA’s 10-by-80-foot tent housed a variety of information booths and hands-on demonstrations to introduce guests to the vital research being performed at the Cleveland center. Popular attractions included a mini wind tunnel and multiple augmented and virtual reality demonstrations. Visitors also engaged through tangram puzzles and a cosmic selfie station. NASA Glenn’s astronaut mascot made several appearances to the delight of young and old alike.
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By European Space Agency
After an extraordinary six-week voyage from northern Norway, the iconic Norwegian tall ship Statsraad Lehmkuhl has docked in Nice, France, concluding ESA’s 2025 Advanced Ocean Training course. Braving everything from wild storms to calm near-freezing seas, students aboard mastered techniques for collecting ocean measurements and harnessed satellite data to unlock insights into our blue planet.
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By NASA
What do music ensembles and human spaceflight have in common? They require the harmonization of different elements to create an inspiring opus.
NASA’s Paige Whittington has experience with both.
As a principal flutist for Purdue University’s Wind Ensemble, Whittington helped fellow flutists play beautiful music together while pursuing her graduate degree. Now, as a space exploration simulation architect at Johnson Space Center in Houston, she strives for a cross-team harmony that can inform the agency’s Moon to Mars exploration approach.
“Simulation often sits at the intersection of several teams because we integrate various designs and mission requirements,” she said. “We have to learn how to best fit those teams and their priorities together to enable cutting-edge human exploration.”
Official NASA portrait of Paige Whittington.NASA/Josh Valcarcel Whittington is part of the NASA Exploration Systems Simulations (NExSyS) team, which develops physics-based simulations to evaluate various vehicles and mission concepts. Her role includes working with lunar and Mars architecture teams within NASA’s Strategy and Architecture Office to assess current and potential future elements of vehicle design, logistics, and planning.
“Our simulations help inform engineers, astronauts, and managers about the new, challenging environments that await us on the Moon and Mars,” she said.
One of the most challenging and rewarding projects she is working on is the Artemis Distributed Simulation. “NExSyS develops and maintains several individual simulations such as rovers, landers, and habitats. However, human exploration on other planetary bodies requires careful integration and coordination of these individual pieces,” she explained.
The distributed simulation brings those pieces together to enable agency teams to envision a complete Artemis mission to the lunar surface. Different elements can be added or removed to create a wide variety of scenarios. The simulation can run automatically with predetermined settings or be responsive to real-time and randomized changes. Participants can operate the team’s video walls, mock-up mission control console, virtual reality platforms, and lander piloting facility to interact together within the chosen Artemis mission scenario.
Paige Whittington standing in front of the Video Wall used for human-in-the-loop simulations located inside the Systems Engineering Simulator facility at NASA’s Johnson Space Center. Image courtesy of Paige Whittington “I am very proud to know that the simulations I help develop have impacted some of the decisions being made by NASA’s architecture teams,” she said.
She is excited to take on a new responsibility, as well. Whittington recently became project manager of the JSC Engineering Orbital Dynamics software package. Also known as JEOD, this open-source tool was created by NASA to model spacecraft trajectories, such as proposed flight paths for a lunar lander. JEOD calculates gravitational and other environmental forces acting on spacecraft to simulate the position and orientation of those vehicles over time, whether they are orbiting a cosmic body or traveling between planets.
Whittington’s family moved frequently during her childhood, calling five different states home as she grew up. Their time in Florida would have a life-long impact.
“My parents drove me and my sister across the state to visit NASA’s Kennedy Space Center. It was mesmerizing, awe-inspiring, and seemingly a whole different world from where my 8-year-old self thought I was living,” she said. Her love of space never waned, and a high school physics teacher encouraged her to study aerospace engineering in college. “That was the turning point when I realized space exploration didn’t have to stay in my dreams – it was a career field I could actually work in.”
Whittington took her teacher’s advice, earning a bachelor’s degree in aerospace engineering from the University of Texas at Austin. She also completed two internships at Johnson through the Universities Space Research Association and interned with a NASA contractor after graduation. While pursuing a master’s degree in Aeronautics and Astronautics at Purdue, Whittington was accepted to NASA’s Pathways Program and did two rotations with the Simulation and Graphics Branch before joining the team as a full-time employee in June 2022.
Paige Whittington celebrating the launch of Artemis I at Johnson Space Center in 2022. Image courtesy of Paige Whittington Whittington has learned several key lessons during her five years with NASA, including the essential part open, regular communication plays in understanding an individual’s or team’s core needs and limitations. She also stressed the importance of adaptability.
“The path that you planned for may not be the path you end up choosing. But that planning enabled you to be who you are now and to make different choices,” she said. “I did not anticipate working in simulations when I started my aerospace engineering degree, but I took the opportunity when it was presented, and I am so happy that I did.”
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