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By NASA
3 min read
NASA Study Reveals Venus Crust Surprise
This global view of the surface of Venus is centered at 180 degrees east longitude. Magellan synthetic aperture radar mosaics from the first cycle of Magellan mapping are mapped onto a computer-simulated globe to create this image. Data gaps are filled with Pioneer Venus Orbiter data, or a constant mid-range value. Simulated color is used to enhance small-scale structure. The simulated hues are based on color images recorded by the Soviet Venera 13 and 14 spacecraft. NASA/JPL-Caltech New details about the crust on Venus include some surprises about the geology of Earth’s hotter twin, according to new NASA-funded research that describes movements of the planet’s crust.
Scientists expected the outermost layer of Venus’ crust would grow thicker and thicker over time given its apparent lack of forces that would drive the crust back into the planet’s interior. But the paper, published in Nature Communications, proposes a crust metamorphism process based on rock density and melting cycles.
Earth’s rocky crust is made up of massive plates that slowly move, forming folds and faults in a process known as plate tectonics. For example, when two plates collide, the lighter plate slides on top of the denser one, forcing it downward into the layer beneath it, the mantle. This process, known as subduction, helps control the thickness of Earth’s crust. The rocks making up the bottom plate experience changes caused by increasing temperature and pressure as it sinks deeper into the interior of the planet. Those changes are known as metamorphism, which is one cause of volcanic activity.
In contrast, Venus has a crust that is all one piece, with no evidence for subduction caused by plate tectonics like on Earth, explained Justin Filiberto, deputy chief of NASA’s Astromaterials Research and Exploration Science Division at NASA’s Johnson Space Center in Houston and a co-author on the paper. The paper used modeling to determine that its crust is about 25 miles (40 kilometers) thick on average and at most 40 miles (65 kilometers) thick.
“That is surprisingly thin, given conditions on the planet,” said Filiberto. “It turns out that, according to our models, as the crust grows thicker, the bottom of it becomes so dense that it either breaks off and becomes part of the mantle or gets hot enough to melt.” So, while Venus has no moving plates, its crust does experience metamorphism. This finding is an important step toward understanding geological processes and evolution of the planet.
“This breaking off or melting can put water and elements back into the planet’s interior and help drive volcanic activity,” added Filiberto. “This gives us a new model for how material returns to the interior of the planet and another way to make lava and spur volcanic eruptions. It resets the playing field for how the geology, crust, and atmosphere on Venus work together.”
The next step, he added, is to gather direct data about Venus’ crust to test and refine these models. Several upcoming missions, including NASA’s DAVINCI (Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging) and VERITAS (Venus Emissivity, Radio Science, InSAR, Topography, and Spectroscopy) and, in partnership with ESA (European Space Agency), Envision, aim to study the planet’s surface and atmosphere in greater detail. These efforts could help confirm whether processes like metamorphism and recycling are actively shaping the Venusian crust today—and reveal how such activity may be tied to volcanic and atmospheric evolution.
“We don’t actually know how much volcanic activity is on Venus,” Filiberto said. “We assume there is a lot, and research says there should be, but we’d need more data to know for sure.”
Melissa Gaskill
NASA Johnson Space Center
Media Contacts:
Karen Fox / Molly Wasser
Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
Victoria Segovia
NASA’s Johnson Space Center
281-483-5111
victoria.segovia@nasa.gov
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Last Updated May 09, 2025 Related Terms
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By NASA
Editor’s Note: The following is one of three related articles about the NASA Data Acquisition System and related efforts. Please visit Stennis News – NASA to access accompanying articles.
The NASA Data Acquisition System, developed at NASA Stennis, is used in multiple test areas at NASA’s Marshall Space Flight Center in Huntsville, Alabama, including Test Facility 116. The facility consists of an open-steel test stand structure, primarily used for subscale testing, and three adjacent test bays designed for large-scale/full-scale testing. NASA/Marshall Space Flight Center Teams at NASA’s Langley Research Center in Hampton, Virginia conduct a test in the 8-Foot High-Temperature Tunnel. The NASA Data Acquisition System, developed at NASA Stennis, represents a potential solution for engineers seeking to standardize data systems at NASA Langley. NASA/Langley Research Center Teams at Test Stand 403, located at NASA’s White Sands Test Facility in Las Cruces, New Mexico, plan to use the NASA Data Acquisition System to support testing and development projects related to NASA’s Orion spacecraft.NASA/White Sands Test Facility A data-focused software tool created at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, continues to expand its capabilities and use across the agency.
Much like the software on a cell phone, the NASA Data Acquisition System (NDAS) software evolves with updates to meet user needs.
“It is not just because we are seeking new opportunities that we evolve,” said Kris Mobbs, NASA project manager for NDAS. “It is because the community of people using this software tell us about all the new, cool things happening and how they want to use the tool.”
Created as a standard method for collecting rocket propulsion test data, NDAS is proving to be a building block to acquire, display, and process various datasets. The flexibility of the software has supplied solutions for NASA’s work in New Mexico and Alabama and is being evaluated for data acquisition needs in Virginia.
When NASA’s White Sands Test Facility in Las Cruces, New Mexico, needed a new data acquisition system with a flexible design, the facility reached out to NASA Stennis since the center had demonstrated success with a similar challenge.
“A major benefit for the agency is having a software platform that is agency owned and developed,” said Josh Simmons, White Sands technical upgrades lead. “Stennis is leading the way and the way the system is written and documented, other programmers can jump in, and the way they have it designed, it can continue on and that is key.”
The NASA Stennis team updated its NDAS platform based on input from White Sands personnel to make it more adaptable and to increase data acquisition rates.
“They look to understand the requirements and to develop an application that is flexible to meet everybody’s requirements,” Simmons said. “They are always willing to improve it, to make it more applicable to a wider audience.”
NDAS will be the primary data acquisition and control systems to support testing and development projects related to NASA’s Orion spacecraft.
“I would like to standardize around it here at White Sands,” said Simmons. “I want to show the worth and versatility of NDAS, so people who need it make a choice to use it.”
Meanwhile at NASA’s Marshall Space Flight Center in Huntsville, Alabama, NDAS is used in multiple areas for small-scale, subscale, and full-scale testing.
Devin Rios Ogle is a contractor software engineer at NASA Marshall, responsible for integrating and upgrading the data acquisition system in the testing areas. The system is used to record data on test sequences to verify they happen as intended.
“The visualization of data is really nice compared to other software I have worked with,” said Rios Ogle. “It is easier to see what data you want to see when you want to see it. You select a measurement, and you can see it in graph form, or tabular form, or however you would like. It is visually appealing and very easy to find the stuff you need.”
Rios Ogle is familiar with the database behind the system and understands what the program is trying to do. He particularly noted the modular approach built into the system, which allows users to adapt the software as needed and is a feature others would find beneficial.
Marcus Jackson, a contractor instrumentation and control engineer at NASA Marshall, echoed Ogle’s assessment of NDAS, noting that it has allowed the center to condense multiple systems into a single package that meets the team’s unique needs.
“Ultimately, NDAS provides us with an excellent software package that is built specifically for the kind of work performed here and at other test stands across the United States,” said Jackson. “It is easy to install, manage, and scale up. It doesn’t break, but if you do find a bug or issue, the NDAS team is very quick to respond and help you find a solution.”
NDAS also represents a potential solution for engineers seeking to standardize data systems at NASA’s Langley Research Center in Hampton, Virginia, a use that could positively impact a mission’s ability to make data-informed decisions.
“We are investigating alternatives for standardization at all Langley facilities,” said Scott Simmons, NASA Langley data systems engineer. “Standardization has the potential for significant maintenance cost savings and efficiencies because of the sharing of the software. Having an instance of NDAS available for the dynamic data system at the 8-Foot High Temperature tunnel enables us to evaluate it as a potential solution for standardization at Langley.”
As the nation’s largest hypersonic blow-down test facility, the tunnel duplicates, as near as possible, flight conditions that would be encountered by hypersonic vehicles at up to Mach 6.5, or more than six times the speed of sound.
Even as its use grows, the NASA Stennis-led software project continues to gain momentum as it expands its capabilities and collaboration with users.
“The goal is to provide a software portfolio that supports a wide range of exciting NASA projects, involving lots of talented people that collaborate and innovate new software solutions far into the future,” Mobbs said. “This is a community of innovative, ambitious, and supportive engineers and scientists across all engineering disciplines that are dedicated to advancing NASA’s bold missions.”
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Last Updated May 08, 2025 Related Terms
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By NASA
Explore This Section RPS Home About About RPS About the Program About Plutonium-238 Safety and Reliability For Mission Planners Contact Power & Heat Overview Power Systems Thermal Systems Dynamic Radioisotope Power Missions Overview Timeline News Resources STEM FAQ 3 min read
NASA Selects Winners of the 2024-2025 Power to Explore Challenge
Ten-year-old, Terry Xu of Arcadia, California; 14-year-old, Maggie Hou of Snohomish, Washington; and 17-year-old, Kairat Otorov of Trumbull, Connecticut, winners of the 2024-2025 Power to Explore Student Writing Challenge. NASA/David Lam, Binbin Zheng, The Herald/Olivia Vanni, Meerim Otorova NASA has chosen three winners out of nine finalists in the fourth annual Power to Explore Challenge, a national writing competition designed to teach K-12 students about the enabling power of radioisotopes for space exploration.
“Congratulations to the amazing champions and all of the participants!
Carl Sandifer II
Program Manager, NASA’s Radioisotope Power Systems Program
The essay competition asked students to learn about NASA’s radioisotope power systems (RPS), likened to “nuclear batteries,” which the agency has used discover “moonquakes” on Earth’s Moon and study some of the most extreme of the more than 891 moons in the solar system. In 275 words or less, students dreamed up a unique exploration mission of one of these moons and described their own power to achieve their mission goals.
“I’m so impressed by the creativity and knowledge of our Power to Explore winners,” said Carl Sandifer II, program manager of the Radioisotope Power Systems Program at NASA’s Glenn Research Center in Cleveland.
Entries were split into three groups based on grade level, and a winner was chosen from each. The three winners, each accompanied by a guardian, are invited to NASA’s Glenn Research Center in Cleveland for a VIP tour of its world-class research facilities this summer.
The winners are:
Terry Xu, Arcadia, California, kindergarten through fourth grade Maggie Hou, Snohomish, Washington, fifth through eighth grade Kairat Otorov, Trumbull, Connecticut, ninth through 12th grade “Congratulations to the amazing champions and all of the participants! Your “super powers” inspire me and make me even more optimistic about the future of America’s leadership in space,” Sandifer said.
The Power to Explore Challenge offered students the opportunity to learn about space power, celebrate their own strengths, and interact with NASA’s diverse workforce. This year’s contest received nearly 2,051 submitted entries from all 50 states, U.S. territories, and the Department of Defense Education Activity overseas.
Every student who submitted an entry received a digital certificate and an invitation to the Power Up virtual event held on March 21. There, NASA announced the 45 national semifinalists, and students learned about what powers the NASA workforce.
Additionally, the national semifinalists received a NASA RPS prize pack.
NASA announced three finalists in each age group (nine total) on April 23. Finalists were invited to discuss their mission concepts with a NASA scientist or engineer during an exclusive virtual event.
The challenge is funded by the Radioisotope Power Systems Program Office in NASA’s Science Mission Directorate and administered by Future Engineers under a Small Business Innovation Research phase III contract. This task is managed by the NASA Tournament Lab, a part of the Prizes, Challenges, and Crowdsourcing Program in NASA’s Space Technology Mission Directorate.
For more information on radioisotope power systems visit: https://nasa.gov/rps
Karen Fox / Erin Morton
Headquarters, Washington
301-286-6284 / 202-805-9393
karen.c.fox@nasa.gov / erin.morton@nasa.gov
Kristin Jansen
Glenn Research Center, Cleveland
216-296-2203
kristin.m.jansen@nasa.gov
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By NASA
Technicians move the Orion spacecraft for NASA’s Artemis II test flight out of the Neil A. Armstrong Operations and Checkout Building to the Multi-Payload Processing Facility at Kennedy Space Center in Florida on Saturday, May 3, 2025. NASA/Kim Shiflett Engineers, technicians, mission planners, and the four astronauts set to fly around the Moon next year on Artemis II, NASA’s first crewed Artemis mission, are rapidly progressing toward launch.
At the agency’s Kennedy Space Center in Florida, teams are working around the clock to move into integration and final testing of all SLS (Space Launch System) and Orion spacecraft elements. Recently they completed two key milestones – connecting the SLS upper stage with the rest of the assembled rocket and moving Orion from its assembly facility to be fueled for flight.
“We’re extremely focused on preparing for Artemis II, and the mission is nearly here,” said Lakiesha Hawkins, assistant deputy associate administrator for NASA’s Moon to Mars Program, who also will chair the mission management team during Artemis II. “This crewed test flight, which will send four humans around the Moon, will inform our future missions to the Moon and Mars.”
Teams with NASA’s Exploration Ground Systems Program begin integrating the interim cryogenic propulsion stage to the SLS (Space Launch System) launch vehicle stage adapter on Wednesday, April 30, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. NASA/Isaac Watson On May 1, technicians successfully attached the interim cryogenic propulsion stage to the SLS rocket elements already poised atop mobile launcher 1, including its twin solid rocket boosters and core stage, inside the spaceport’s Vehicle Assembly Building (VAB). This portion of the rocket produces 24,750 pounds of thrust for Orion after the rest of the rocket has completed its job. Teams soon will move into a series of integrated tests to ensure all the rocket’s elements are communicating with each other and the Launch Control Center as expected. The tests include verifying interfaces and ensuring SLS systems work properly with the ground systems.
Meanwhile, on May 3, Orion left its metaphorical nest, the Neil Armstrong Operations & Checkout Facility at Kennedy, where it was assembled and underwent initial testing. There the crew module was outfitted with thousands of parts including critical life support systems for flight and integrated with the service module and crew module adapter. Its next stop on the road to the launch pad is the Multi-Payload Processing Facility, where it will be carefully fueled with propellants, high pressure gases, coolant, and other fluids the spacecraft and its crew need to maneuver in space and carry out the mission.
After fueling is complete, the four astronauts flying on the mission around the Moon and back over the course of approximately 10 days, will board the spacecraft in their Orion Crew Survival System spacesuits to test all the equipment interfaces they will need to operate during the mission. This will mark the first time NASA’s Reid Wiseman, Victor Glover, and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen, will board their actual spacecraft while wearing their spacesuits. After the crewed testing is complete, technicians will move Orion to Kennedy’s Launch Abort System Facility, where the critical escape system will be added. From there, Orion will move to the VAB to be integrated with the fully assembled rocket.
NASA also announced its second agreement with an international space agency to fly a CubeSat on the mission. The collaborations provide opportunities for other countries to work alongside NASA to integrate and fly technology and experiments as part of the agency’s Artemis campaign.
While engineers at Kennedy integrate and test hardware with their eyes on final preparations for the mission, teams responsible for launching and flying the mission have been busy preparing for a variety of scenarios they could face.
The launch team at Kennedy has completed more than 30 simulations across cryogenic propellant loading and terminal countdown scenarios. The crew has been taking part in simulations for mission scenarios, including with teams in mission control. In April, the crew and the flight control team at NASA’s Johnson Space Center in Houston simulated liftoff through a planned manual piloting test together for the first time. The crew also recently conducted long-duration fit checks for their spacesuits and seats, practicing several operations while under various suit pressures.
NASA astronaut Christina Koch participates in a fit check April 18, 2025, in the spacesuit she will wear during Artemis II. NASA/Josh Valcarcel Teams are heading into a busy summer of mission preparations. While hardware checkouts and integration continue, in coming months the crew, flight controllers, and launch controllers will begin practicing their roles in the mission together as part of integrated simulations. In May, the crew will begin participating pre-launch operations and training for emergency scenarios during launch operations at Kennedy and observe a simulation by the launch control team of the terminal countdown portion of launch. In June, recovery teams will rehearse procedures they would use in the case of a pad or ascent abort off the coast of Florida, with launch and flight control teams supporting. The mission management team, responsible for reviewing mission status and risk assessments for issues that arise and making decisions about them, also will begin practicing their roles in simulations. Later this summer, the Orion stage adapter will arrive at the VAB from NASA’s Marshall Spaceflight Center in Huntsville, Alabama, and stacked on top of the rocket.
NASA astronauts Reid Wiseman (foreground) and Victor Glover participate in a simulation of their Artemis II entry profile on March 13, 2025.NASA/Bill Stafford Through Artemis, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and build the foundation for the first crewed missions to Mars.
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Gary Laier, center liaison for the Small Business Innovation Research/Small Business Technology Transfer (SBIR/STTR) program at NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris When curiosity takes flight, learning knows no bounds. The impact of supporting STEM education extends far beyond the classroom, shaping the future of innovation and exploration. NASA Engages is the agency’s outreach website that connects NASA experts and resources with communities, educators, and students across the country. Led by NASA’s Office of STEM Engagement, the platform fosters collaboration between educators, organizations, and NASA employees to inspire the next generation.
Giovanna Camacho, Pathways systems engineering intern from NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris Bringing NASA to the Classroom
NASA employees dedicate their time and expertise through NASA Engages, whether they’re passionate about robotics, flight research, or inspiring young minds to pursue STEM careers. One example of this is Aero Fair, a STEM program led by the California Office of STEM Engagement at NASA’s Armstrong Flight Research Center in Edwards, California. This initiative brings aeronautics directly to students, with NASA Armstrong professionals visiting classrooms – both in person and virtually – to engage students during three-day experiences that allow them to learn about aeronautics, meet NASA professionals, and explore potential career paths they might not have previously considered.
“When volunteers step up to help inspire and facilitate learning in the classroom, they are benefiting not only the students they interact with, but our future generation as well,” says Giovanna Camacho, Pathways systems engineering intern at NASA Armstrong, who volunteered at the event.
Chloe Day, a student at Tropico Middle School in Rosamond, California, said Aero Fair inspired her to consider a STEM career. “When NASA employees were talking about what they do and how they help our world today, it made me feel like I want to do it too.”
Educators can request an Aero Fair experience through NASA’s STEM Gateway. These programs “give students a chance to see themselves as real problem-solvers and innovators,” said Shauna Tinich, a Tropico Middle School teacher. “The most beneficial part of Aero Fair is the real-world connection to STEM. The connection to NASA makes it real and exciting for the students.”
Students from Tropico Middle School in Rosamond, California, build their own paper planes as part of a project during NASA Aero Fair on April 9, 2025.NASA/Genaro Vavuris A Program for Impact
The NASA Engages website matches outreach opportunities to employee skills and interests, while educators and community organizations can use the website to request public speakers, classroom visits, and educational support at events.
For many volunteers, the experience is just as inspiring as it is for the students. “Every time I volunteer, I walk out inspired,” Camacho said. “It motivates me to continue my pursuit of making a difference.”
Gary Laier, center liaison for the Small Business Innovation Research and Small Business Technology Transfer programs at NASA Armstrong, and Aero Fair volunteer, agreed: “It’s a rewarding experience for students, teachers, and NASA volunteers alike. I enjoy the opportunity to inspire youth and get them excited about their futures.”
By participating in outreach activities like Aero Fair, career panels, or events, NASA employees not only help ignite curiosity and provide knowledge to students and the community but also strengthen NASA’s connection to the communities it serves.
Gary Laier, center liaison for the Small Business Innovation Research/Small Business Technology Transfer (SBIR/STTR) program at NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris Explore NASA STEM Opportunities
Educators, organizations, and community groups can connect with NASA in two ways. Through NASA Engages, external groups can request NASA support for their own events – such as inviting a NASA speaker or arranging classroom visits and providing outreach materials. Meanwhile, NASA STEM Gateway provides opportunities for individuals to participate in NASA-developed STEM events, internships, and programs like Aero Fair. To request NASA participation in an event or to learn more about NASA STEM opportunities, visit https://stemgateway.nasa.gov/nasaengages/s/.
Giovanna Camacho, Pathways systems engineering intern at NASA’s Armstrong Flight Research Center in Edwards, California, teaches students about aeronautics during Aero Fair at Tropico Middle School in Rosamond, California, on April 9, 2025.NASA/Genaro Vavuris Share
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Last Updated Apr 30, 2025 Related Terms
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