Members Can Post Anonymously On This Site
-
Similar Topics
-
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
Read More About Venus
Share
Details
Last Updated May 09, 2025 Related Terms
Astromaterials Venus Explore More
5 min read How NASA is Using Virtual Reality to Prepare for Science on Moon
Article
2 months ago
5 min read NASA DAVINCI Mission’s Many ‘Firsts’ to Unlock Venus’ Hidden Secrets
NASA’s DAVINCI probe will be first in the 21st century to brave Venus’ atmosphere as…
Article
5 months ago
5 min read 5 Surprising NASA Heliophysics Discoveries Not Related to the Sun
Article
6 months ago
Keep Exploring Discover Related Topics
Venus
Astromaterials
Planetary Science
Solar System
View the full article
-
By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s coverage of the April 8, 2024, total solar eclipse has earned two nominations for the 46th Annual News & Documentary Emmy Awards.
The Academy of Television Arts & Sciences announced the nominations on May 1, recognizing NASA’s outstanding work in sharing this rare celestial event with audiences around the world. The winners are set to be unveiled at a ceremony in late June.
“Total solar eclipses demonstrate the special connection between our Earth, Moon, and Sun by impacting our senses during the breathtaking moments of total alignment that only occur at this time on Earth,” said Nicky Fox, associate administrator for science at NASA Headquarters in Washington. “NASA’s Eclipse coverage team perfectly encapsulated the awe-inspiring experience from start to finish for viewers around the world in this once-in-a-lifetime moment in American history. Congratulations to the entire NASA Eclipse coverage team for their two much-deserved Emmy award nominations!”
The two nominations include:
Outstanding Live News Special for the agency’s live broadcast coverage of the 2024 total solar eclipse. NASA’s live broadcast coverage of the 2024 total solar eclipse was the most ambitious live project ever attempted by the agency. The broadcast spanned three hours as the eclipse traveled 3,000 miles across seven states and two countries. From cities, parks, and stadiums, 11 hosts and correspondents provided on air commentary, interviews, and live coverage. Viewers tuned in from all over the world, including at watch parties in 9 locations, from the Austin Public Library to New York’s Times Square. An interactive “Eclipse Board” provided real time data analysis as the Moon’s shadow crossed North America. Live feeds from astronauts aboard the International Space Station and NASA’s WB-57 high-altitude research aircraft were brought in to provide rare and unique perspectives of the solar event.
In total, NASA received almost 40 million views across its own distribution. Externally, the main broadcast was picked up in 2,208 hits on 568 channels in 25 countries.
Outstanding Show Open or Title Sequence – News for the agency’s show open for the 2024 total solar eclipse. NASA’s show open for the 2024 total solar eclipse live broadcast explores the powerful connections between the Sun, humanity, and the rare moment when day turns to night. From witnessing the Sun’s atmosphere to feeling the dramatic drop in temperature, the video captures the psychological, emotional, and cultural impact of this celestial phenomenon.
For more information about NASA missions, visit:
https://www.nasa.gov
Share
Details
Last Updated May 08, 2025 Related Terms
General 2024 Solar Eclipse Eclipses Heliophysics Heliophysics Division Science Mission Directorate Solar Eclipses The Solar System Explore More
7 min read NASA’s Hubble Pinpoints Roaming Massive Black Hole
Like a scene out of a sci-fi movie, astronomers using NASA telescopes have found “Space…
Article 3 hours ago 2 min read NASA Expands Youth Engagement With New Scouting America Agreement
Article 1 day ago 5 min read NASA Progresses Toward Crewed Moon Mission with Spacecraft, Rocket Milestones
Article 2 days ago Keep Exploring Discover Related Topics
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By NASA
Photo of Matt Anderson Acting NASA Administrator Janet Petro issued the following statement regarding the nomination by President Donald Trump of Matt Anderson Wednesday to serve as the agency’s deputy administrator:
“As a retired United States Air Force colonel and executive of the Space Force Association, Matt Anderson brings extensive knowledge of space operations, aeronautics expertise, and industry experience. If confirmed, he would join NASA’s leadership team at a time when partnerships and a sharpened focus on mission are essential to our continued success. Along with President Trump’s nominee to lead NASA, Jared Isaacman, he will strengthen collaboration across sectors and help NASA advance exploration, serve the American people, and deliver results for the benefit of all.”
Throughout his over 24-year tenure in the U.S. Air Force, Anderson culminated his career as the U.S. Transportation Command’s senior liaison officer to North American Aerospace Defense Command (NORAD), U.S. Northern Command (USNORTHCOM), and U.S. Space Command (USSPACECOM). He retired as a colonel Oct. 1, 2021. Anderson is currently a vice president and Space Force & Air Force client executive at CACI. He also serves as the chief growth officer at the Space Force Association.
An alum of the U.S. Air Force Academy, Embry-Riddle Aeronautical University, and the University of Colorado at Colorado Springs, Anderson holds degrees in biology, aeronautical science, and leadership & counseling. In 2024, Anderson was named by the Washington Exec as one of their “Top Space Execs to Watch.”
For more about NASA’s mission, visit:
https://www.nasa.gov
-end-
Bethany Stevens / Amber Jacobson
Headquarters, Washington
202-358-1600
bethany.c.stevens@nasa.gov / amber.c.jacobson@nasa.gov
Share
Details
Last Updated May 07, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
Leadership
View the full article
-
By NASA
Dave Gallagher will become the director of NASA’s Jet Propulsion Laboratory in Southern California on Monday, June 2. Credit: NASA/JPL-Caltech The following is a statement from acting NASA Administrator Janet Petro on the appointment of David Gallagher as director of the agency’s Jet Propulsion Laboratory (JPL) in Southern California. NASA JPL announced Wednesday Laurie Leshin would step down effective Sunday, June 1.
“Laurie Leshin’s leadership at JPL has been nothing short of extraordinary. She brought a sharp scientific mind, a strong sense purpose, and a clear vision that helped propel the lab forward during a pivotal time. From groundbreaking missions to remarkable technological milestones, Laurie advanced JPL’s legacy of exploration and innovation. We are grateful for her service and wish her the very best as she continues to inspire in the next phase of her career.
“I’m equally confident in Dave Gallagher’s ability to lead JPL’s next chapter. He brings decades of experience, a steady hand, and a deep understanding of what makes JPL unique. With Dave at the helm, JPL remains well-positioned to continue delivering for NASA and the nation – pushing the boundaries of science and discovery for the benefit of all.”
For more information about NASA, visit:
https://www.nasa.gov
-end-
Bethany Stevens / Amber Jacobson
Headquarters, Washington
202-358-1600
bethany.c.stevens@nasa.gov / amber.c.jacobson@nasa.gov
Share
Details
Last Updated May 07, 2025 EditorJennifer M. DoorenLocationNASA Headquarters Related Terms
Jet Propulsion Laboratory View the full article
-
By NASA
NASA and the Sam Houston Area Council (SHAC) of Scouting America signed a collaborative Space Act Agreement on December 17, 2024, expanding youth access to programs and opportunities with the Johnson Space Center’s Office of STEM Engagement (OSTEM) in Houston.
The agreement forges the first formal partnership between NASA OSTEM and Scouting America. It will leverage NASA’s educational outreach programs to enrich scout activities and experiences while providing the agency with new opportunities to engage youth around its mission, vision, and goals.
NASA Acting Associate Administrator Vanessa Wyche (left), at the time serving as director of Johnson Space Center, and Sam Houston Area Council of Scouting America Executive Officer Marvin Smith sign a Space Act Agreement on Dec. 17, 2024. NASA/James Blair “Our ability to explore the unknown and innovate for the benefit of all humanity depends on a highly skilled and competitive STEM workforce,” said NASA Acting Associate Administrator Vanessa Wyche. “Together with SHAC, we can inspire future generations of explorers, scientists, and engineers to help us take the next giant leap toward exciting discoveries.”
The agreement has already enabled NASA and SHAC to collaborate on a new space-focused summer experience at Camp Strake, the council’s premier camping facility in Southeast Texas. During the weeklong program, scouts will participate in hands-on STEM activities created in partnership with NASA, tour Johnson Space Center, attend robotics and space exploration workshops, and get an in-depth look at NASA’s current projects. SHAC serves approximately 25,000 youth in 16 counties in Southeast Texas.
Wyche and Johnson leadership presented Smith and members of local scout troops with an American flag that flew aboard NASA’s SpaceX Crew-8 mission. NASA/James Blair “NASA and SHAC share common goals of growing youth interest in science, technology, engineering, and math careers, and providing access to programs and experiences that prepare them to enter the STEM workforce,” said Gamaliel Cherry, director of Johnson’s Office of STEM Engagement. “We are excited to connect more students to NASA’s mission, work, and people through this partnership.”
NASA OSTEM provides opportunities for the next generation of explorers to discover and hone the science, technology, engineering, and math skills needed for the agency’s bold exploration plans.
For the latest NASA STEM events, news, and activities for students at any grade level, visit:
https://stem.nasa.gov
Explore More
5 min read NASA Progresses Toward Crewed Moon Mission with Spacecraft, Rocket Milestones
Article 22 hours ago 5 min read Nilufar Ramji: Shaping Johnson’s Giant Leaps Forward
Article 1 day ago 3 min read NASA Langley Participates in Air Power Over Hampton Roads
Article 2 days ago View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.