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Three NASA Langley Employees Win Prestigious Silver Snoopy Awards 

Thu, 08/07/2025 - 10:22am

3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) From left to right, Astronaut Tracy Dyson, Jeremy Shidner, Sara R. Wilson, and Christopher Broadaway pose for a photo after the 2025 Silver Snoopy Awards ceremony. NASA/Mark Knopp

Three employees from NASA’s Langley Research Center in Hampton, Virginia recently earned the Silver Snoopy award, a prestigious honor given to NASA employees and contractors across the agency for exceptional achievements related to spaceflight safety or mission success. Christopher Broadaway, Jeremy Shidner, and Sara Wilson received the awards during a ceremony held at the center on July 22. 

The Silver Snoopy award is given personally by NASA astronauts and is presented to less than one percent of the agency’s workforce annually. The award is one of several overseen by the Space Flight Awareness (SFA) Program at NASA. Established in 1963, the SFA Program is vital in ensuring quality and flight safety of America’s space program. The SFA Program works to highlight the individuals behind the success of NASA’s programs as well as motivate the next generation of innovators and cosmic explorers. 

Astronaut Tracy Dyson visited Langley to present the Silver Snoopy lapel pin and a framed Silver Snoopy certificate. Dyson flew aboard the space shuttle Endeavor on STS-118, served as flight engineer for Expedition 23/24, and conducted hundreds of hours of scientific investigations aboard the International Space Station for Expedition 70/71. She has spent a total of 373 days in space and dedicated over 23 hours to spacewalks. 

As a flight engineer with substantial experience, Dyson understands the importance of space flight safety.  

“Those who are receiving this award didn’t do it because they came nine to five and left. It’s not because it was just their job,” she said. “It’s because it’s their life, and our lives are safer and better for it.” 

Astronaut Tracy Dyson signs certificates of appreciation prior to the 2025 Silver Snoopy Awards ceremony. NASA/Mark Knopp

Silver Snoopy recipient and aerospace engineer Jeremey Shidner echoed Dyson’s perspective. 

“This level of trust is particularly profound because astronauts understand better than anyone the countless systems, procedures, and people that must work flawlessly for a mission to succeed,” he said. “When astronauts single someone out for recognition, it reflects their confidence that this person embodies the same commitment to excellence and safety that they themselves must maintain.” 

The prestigious award consists of a certificate of appreciation signed by Dyson, an authentication letter, and a miniature sterling silver lapel pin in the shape of the well-loved character Snoopy from the comic strip “Peanuts.” Each pin awarded has flown in space. The pins awarded to Langley’s recipients flew aboard STS-118. 

The 2025 Silver Snoopy Award pins NASA/Mark Knopp

Here are the three award recipients from Langley and their achievements: 

Christopher Broadaway: For exemplary support in assisting the Commercial Crew Program ensure safety and mission success in industry partners’ human spaceflight missions. 

Jeremy Shidner: For significant contributions to the Commercial Crew Program to ensure flight safety and mission success for Entry, Descent, and Landing. Collaborating closely with the Crew Flight Test team and Mission Operations Flight Dynamics Officers, he refined the simulation model to incorporate real pilot performance data, which resulted in increased entry accuracy, eliminating an elevated risk to crew safety. 

Sara R. Wilson: For engineering excellence in the application of advanced statistical tools and methods characterizing NASA’s human spaceflight missions. She also played a key role in developing standardized tests for advanced lunar spacesuit gloves, creating consistency in evaluating materials for extreme lunar environments. 

Sarah Reeps and Layla Smith
NASA Langley Research Center

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As NASA Missions Study Interstellar Comet, Hubble Makes Size Estimate

Thu, 08/07/2025 - 10:00am
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As NASA Missions Study Interstellar Comet, Hubble Makes Size Estimate Hubble captured this image of the interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from Earth. Hubble shows that the comet has a teardrop-shaped cocoon of dust coming off its solid, icy nucleus.  Image: NASA, ESA, David Jewitt (UCLA); Image Processing: Joseph DePasquale (STScI)

A team of astronomers has taken the sharpest-ever picture of the unexpected interstellar comet 3I/ATLAS using the crisp vision of NASA’s Hubble Space Telescope. Hubble is one of many missions across NASA’s fleet of space telescopes slated to observe this comet, together providing more information about its size and physical properties. While the comet poses no threat to Earth, NASA’s space telescopes help support the agency’s ongoing mission to find, track, and better understand near-Earth objects.

Hubble’s observations allow astronomers to more accurately estimate the size of the comet’s solid, icy nucleus. The upper limit on the diameter of the nucleus is 3.5 miles (5.6 kilometers), though it could be as small as 1,000 feet (320 meters) across, researchers report. Though the Hubble images put tighter constraints on the size of the nucleus compared to previous ground-based estimates, the solid heart of the comet presently cannot be directly seen, even by Hubble. Observations from other NASA missions including the James Webb Space Telescope, TESS (Transiting Exoplanet Survey Satellite), and the Neil Gehrels Swift Observatory, as well as NASA’s partnership with the W.M. Keck Observatory, will help further refine our knowledge about the comet, including its chemical makeup.

Hubble also captured a dust plume ejected from the Sun-warmed side of the comet, and the hint of a dust tail streaming away from the nucleus. Hubble’s data yields a dust-loss rate consistent with comets that are first detected around 300 million miles from the Sun. This behavior is much like the signature of previously seen Sun-bound comets originating within our solar system.

The big difference is that this interstellar visitor originated in some other solar system elsewhere in our Milky Way galaxy.

3I/ATLAS is traveling through our solar system at a staggering 130,000 miles (209,000 kilometers) per hour, the highest velocity ever recorded for a solar system visitor. This breathtaking sprint is evidence that the comet has been drifting through interstellar space for many billions of years. The gravitational slingshot effect from innumerable stars and nebulae the comet passed added momentum, ratcheting up its speed. The longer 3I/ATLAS was out in space, the higher its speed grew.

“No one knows where the comet came from. It’s like glimpsing a rifle bullet for a thousandth of a second. You can’t project that back with any accuracy to figure out where it started on its path,” said David Jewitt of the University of California, Los Angeles, science team leader for the Hubble observations.

The paper will be published in The Astrophysical Journal Letters. It is already available on Astro-ph.

New Evidence for Population of Wandering Space Relics

“This latest interstellar tourist is one of a previously undetected population of objects bursting onto the scene that will gradually emerge,” said Jewitt. “This is now possible because we have powerful sky survey capabilities that we didn’t have before. We’ve crossed a threshold.”

This comet was discovered by the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) on July 1, 2025, at a distance of 420 million miles from the Sun. ATLAS is an asteroid impact early warning system developed by the University of Hawai’i. 

In the meantime, other NASA missions will provide new insight into this third interstellar interloper, helping refine our understanding of these objects for the benefit of all. 3I/ATLAS should remain visible to ground-based telescopes through September, after which it will pass too close to the Sun to observe, and is expected to reappear on the other side of the Sun by early December.

The Hubble Space Telescope has been operating for more than three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.

To learn more about Hubble, visit: https://science.nasa.gov/hubble

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Comet 3I/ATLAS

Hubble captured this image of the interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from Earth. Hubble shows that the comet has a teardrop-shaped cocoon of dust coming off its solid, icy nucleus.



Comet 3I/ATLAS Compass Image

This image of interstellar comet 3I/ATLAS was captured by the Hubble Space Telescope’s Wide Field Camera on July 21, 2025. The scale bar is labeled in arcseconds, which is a measure of angular distance on the sky. One arcsecond is equal an angular measurement of 1/3600 of o…




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Wade Sisler: Aficionado of Wonder Serving the Cosmos

Thu, 08/07/2025 - 8:00am

Across 42 years at NASA, Wade Sisler — executive producer at NASA’s Goddard Space Flight Center in Greenbelt, Maryland—watched the edge of human knowledge progress. During that time, the tools for visualizing and communicating those discoveries evolved just as rapidly.

Executive Producer Wade Sisler has worked at NASA for 42 years, starting at the agency’s Ames Research Center in California’s Silicon Valley, and now at Goddard Space Flight Center in Greenbelt, Md.Credit: Courtesy of Wade Sisler

“I’ve spent my career surrounded by people with amazing curiosity and intellect, pursuing questions that could change the way we see the universe, both literally and metaphorically,” Sisler said.

From his start as a student photographer at NASA’s Ames Research Center in California’s Silicon Valley, Sisler ultimately became a creative force behind some of NASA’s most iconic science storytelling. He transitioned to videography when he realized the wonder and understanding the medium could convey.

Photos taken by Sisler between 1985 and 1992 that showcase emerging NASA technologies.Credit: NASA/Wade Sisler

“The fidelity of the story you could tell with pictures through video was so impactful,” he said. “It was just pure awe. So I gave up my Hasselblads, trading the sheer beauty of imagery for the much more powerful storytelling tools that came with the emerging field of video — specifically the ability to take the audience with you to experience the mission.”

From Space Frogs to the Eagle Nebula 

In the 1980s and ’90s, Sisler worked as a producer on a wide range of projects, translating complex research into short documentaries and educational broadcasts.

“We were helping people see things that had never been seen before, and showing them relationships that they never knew existed,” he said.

In one of his favorite early assignments, Sisler worked with astronaut Mae Jemison for a video project on space frogs. Jemison was studying how frog embryos develop in microgravity on the space shuttle. Sisler also had a hand in early virtual reality systems, producing one of the first videos depicting how VR could work.

Sisler (left) stands alongside coworkers Marty Curry, Eric James, and branch chief Roland Michealis — fellow members of the photography team at NASA Ames.Credit: Courtesy of Wade Sisler

Sisler eventually moved from NASA Ames to NASA Headquarters in Washington. There, he helped modernize NASA TV.

“They were shifting it from just mission-oriented content to a television news feed, exploring ideas to align with national news interests,” he said.

In one of his pilot stories, he produced a video and story news package about the Hubble Space Telescope’s observations of the Eagle Nebula.

“They handed me a 16-by-20-inch print of the Eagle Nebula right after Hubble imaged it,” he said. His team used a robotic camera to pan around the image while narration explained what viewers were seeing. “We wondered if we put that little microcosm of a story into a news feed, would anybody use it? And it ended up being used thousands and thousands of times, validating the NASA TV model with a bona fide science story and giving me a glimpse of the exciting stuff I could do.”

While at NASA Headquarters, Sisler also negotiated an IMAX agreement that led to new 3D films (including ones Sisler worked on, like the 1997 “Mission to Mir” and 2002 “Space Station 3D”). After a few years, he moved on to NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in 1997 as an executive producer. Goddard’s communications team was small and had little experience in visual storytelling, so he joined the team to nurture its growth.

Sisler stands alongside Office of Communications collaborators Laura Betz and Thaddeus Cesari at the immersive “Beyond the Light” exhibit of James Webb Space Telescope imagery at ARTECHOUSE in Washington, D.C.Credit: Courtesy of Wade Sisler Science for the Senses 

In the late ’90s, Wade teamed up with NASA’s Scientific Visualization Studio (based at NASA Goddard) and lead visualizer Horace Mitchell to explore a new frontier in science storytelling. While NASA was already known for its iconic space imagery, much of its data deals with invisible phenomena or abstract processes that aren’t inherently visual. By bringing together scientists, artists, and producers, Sisler helped transform data into visualizations and animations for broader audiences.

“We had to invent ways of visualizing the invisible so meaning was more easily conveyed,” he said. “The result was stories that were not just newsworthy—they were often stunningly beautiful and showed the connections and workings of the Earth and universe in ways we had never seen before.”

The team had a breakout hit in 1998 with an El Niño visualization, which helped drive public understanding of the phenomenon. Sisler also helped launch a NASA Goddard program to link scientific experts with news stations around the world.

“We wanted to put the authentic voices of scientists in the chair to convey their sense of awe while telling people scientifically why it matters,” he said. “Pairing their voices with great visualizations was an unbeatable combination and that became the fundamental way we tell science stories.”

Sisler’s storytelling journey evolved into increasingly ambitious creative partnerships that brought NASA science to new cultural spaces. With “Cosmic Cycles,” a collaboration with the National Philharmonic, Wade helped create a program that paired music from a live symphony with high-resolution NASA imagery, inviting viewers to experience the celestial scenery emotionally, not just intellectually.

Instead of the NASA Goddard team creating a video to go along with music, “The composer drew inspiration from video produced by Goddard,” Sisler said. “It’s one of the best examples of science and art in mutual orbit.”

From left: Multimedia Producer Scott Wiessinger of NASA Goddard, Sisler, maestro Piotr Gajewski of the National Philharmonic, and composer Henry Dehlinger participate in a panel discussion about “Cosmic Cycles: A Space Symphony,” a collaboration between NASA Goddard and the National Philharmonic.Credit: NASA/Joel Kowsky

That blending of science and artistic expression reached a new scale in “Beyond the Light,” an art show developed with ARTECHOUSE and James Webb Space Telescope communications lead Laura Betz. Sisler linked artists with NASA scientists to turn cutting-edge astrophysics into a gallery-scale sensory experience. Most recently, Sisler championed a major documentary on Webb called “Cosmic Dawn.” The 1.5-hour film brings viewers on an unprecedented journey through Webb’s delicate assembly, rigorous testing, and triumphant launch.

Many of NASA’s flagship communication programs trace their roots to small teams that Sisler helped assemble and guide. He took a builder’s approach, rolling up his sleeves, testing ideas, and empowering others to scale them. From science storytelling and satellite media tours to the rise of NASA’s audio storytelling, Spanish-language content, Conceptual Image Laboratory animations, social media presence, and live broadcast programming, Sisler played a key role in turning bright ideas into enduring agency assets.

For each of these projects, Sisler worked behind the scenes as a creative force and a connector, bringing together filmmakers, animators, composers, scientists, engineers, astronauts, museum curators, data visualizers, and educators.

Lighting the Way

Despite many accolades, Sisler said his proudest accomplishment is the success of the internship program he has led for NASA Goddard’s Office of Communications.

Sisler has served as a mentor for many interns over the years, including students like Talya Lerner, center, standing next to Ed Campion, then-Goddard news chief. Sisler has referred to his own career as “the internship that never ended” because he had so many opportunities to explore different areas of communications. Credit: NASA/Bill Hrybyk

“The thing that stays with me most is seeing where our former interns have landed,” he said. Many now lead their own programs within NASA, shaping the next generation of science storytelling from inside the agency. Others have taken their skills beyond NASA, contributing to science and technology literacy through media, education, and public engagement. “It’s been a privilege to help launch so many of these careers. I’ve always believed that when you combine mentorship, meaningful work, and a little creative freedom, you create a ripple effect that lasts for decades.”

Sisler’s own NASA journey began with a Pathways internship at NASA Ames while he was studying journalism at Baylor University in Texas. His work there drew him into visual storytelling, which led him to pursue photography, video, and science photography at the Rochester Institute of Technology in New York. As he alternated semesters between school and NASA Ames, he refined both his interests and his skills.

Sisler’s goal as an internship program coordinator was to help give the next generation of science communicators the same opportunity. He developed a communication “boot camp” to help interns develop their storytelling chops in many areas and figure out which were their favorites.

“All the interesting stuff happens at the intersections of people’s passions,” he said. “The best, most powerful thing I think I’ve done in my time at NASA is to help guide the next wave of science communicators. Seeing their success is the gift that keeps on giving.”

By Ashley Balzer
NASA’s Goddard Space Flight Center, Greenbelt, Md.

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Curiosity Blog, Sols 4622-4623: Kicking Off (Earth) Year 14 With an Investigation of Veins

Wed, 08/06/2025 - 9:01pm
Curiosity Navigation

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Curiosity Blog, Sols 4622-4623: Kicking Off (Earth) Year 14 With an Investigation of Veins NASA’s Mars rover Curiosity, using its Left Navigation Camera, caught the shadow of the rover’s mast looking ahead to new terrain as the mission started its 14th Earth year on Mars. Curiosity acquired this image on Aug. 6, 2025 — Sol 4621, or Martian day 4,621 of the Mars Science Laboratory mission — at 06:24:09 UTC. NASA/JPL-Caltech

Written by Abigail Fraeman, Deputy Project Scientist at NASA’s Jet Propulsion Laboratory

Earth planning date: Wednesday, Aug. 6, 2025.

Today was a very special day for Curiosity as the rover celebrated the start of a 14th year on Mars. Curiosity is currently exploring the mysterious boxwork formations. On Monday, the rover positioned itself at the side of one of the ridges, where the team had spotted tantalizing hints of a complex network of razor-thin veins that may give insight into what is holding the ridges up, compared to the surrounding hollows

In this plan, the team will use the instruments on Curiosity’s arm and mast to investigate the geometry and composition of these veins to learn more about them. APXS and MAHLI will both observe “Repechón,” a loose block with dark-toned, mottled material exposed on top, as well as “Lago Poopó,” a bright, relatively clean vein network. MAHLI will also collect a side view of “Repechón.” ChemCam will use its laser to analyze two targets, “Vicguna,” a protruding vein edge with nodular texture, and “Ibare,” which has some exposed light-toned veins. Outside of the vein investigation, ChemCam’s telescopic RMI camera will observe layering in a nearby butte and the Mishe Mokwa feature, while Mastcam will take mosaics on “Cachiniba,” a broken block, “Yapacani,” the side of another large boxwork ridge, and “Llullaillaco,” a faraway feature that we imaged from a slightly different location in a previous plan. Additional environmental monitoring observations will round out the plan, followed by a straight-line drive to the east, to an area where several large boxwork ridges intersect that the team has been informally calling “the peace sign” because of its shape.

I usually get nostalgic around landing anniversaries, or “landiversaries,” and this year, I found myself looking back through pictures of landing night. One of my favorites shows me standing next to science team member Kirsten Siebach right after we received the first images from Curiosity. The two of us have the biggest, most excited grins on our faces. We were both graduate students at the time, and both of us were writing thesis chapters analyzing orbital data over regions we hoped to explore with Curiosity one day. I was studying a layer in Mount Sharp that contained hematite, and the team named this feature “Vera Rubin ridge” when Curiosity reached it in 2017. Kirsten, who is now a professor at Rice University, was focused on the boxwork structures, pondering how they formed and hypothesizing what they might tell us about the history of Martian habitability when we reached them.

Thirteen years later, I had another big grin on my face today, as I listened to Kirsten and our incredible science team members excitedly discussing Curiosity’s new images of these same boxwork structures. I was also filled with gratitude for the thousands of people it took to get us to this moment. It was the absolute best way to spend a landiversary.


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NASA to Provide Live Coverage of Crew-10 Return, Splashdown

Wed, 08/06/2025 - 5:39pm
From left, NASA’s SpaceX Crew-10 members Kirill Peskov of Roscosmos, NASA astronauts Nichole Ayers and Anne McClain, and JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi share a light moment during a group portrait inside the International Space Station’s Kibo laboratory module.Credit: NASA

Editor’s Note: This advisory was updated Aug. 7, 2025, to reflect changes in the targeted undocking and splashdown dates.

NASA and SpaceX are targeting no earlier than 6:05 p.m. EDT, Friday, Aug. 8, for the undocking of the agency’s SpaceX Crew-10 mission from the International Space Station. Pending weather conditions, splashdown is targeted at 11:33 a.m., Saturday, Aug. 9. Crew-10 will be the first mission to splash down off the California coast for NASA’s Commercial Crew Program.

NASA astronauts Anne McClain and Nichole Ayers, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov are completing a five-month science expedition aboard the orbiting laboratory and will return time-sensitive research to Earth.

Mission managers continue monitoring weather conditions in the area, as undocking of the SpaceX Dragon depends on spacecraft readiness, recovery team readiness, weather, sea states, and other factors. NASA and SpaceX will select a specific splashdown time and location closer to the Crew-10 spacecraft undocking.

NASA’s live coverage of return and related activities will stream on NASA+, Amazon Prime, and more. Learn how to stream NASA content through a variety of platforms.

NASA’s coverage is as follows (all times Eastern and subject to changed based on real-time operations):

Friday, Aug. 8

3:45 p.m. – Hatch closure coverage begins on NASA+ and Amazon Prime.

4:20 p.m. – Hatch closing

5:45 p.m. – Undocking coverage begins on NASA+ and Amazon Prime.

6:05 p.m. – Undocking

Following the conclusion of undocking coverage, NASA will distribute audio-only discussions between Crew-10, the space station, and flight controllers during Dragon’s transit away from the orbital complex.

Saturday, Aug. 9

10:15 a.m. – Return coverage begins on NASA+ and Amazon Prime.

10:39 a.m. – Deorbit burn

11:33 a.m. – Splashdown

1 p.m. – Return to Earth media teleconference will stream live on the agency’s YouTube channel, with the following participants:

  • Steve Stich, manager, NASA’s Commercial Crew Program
  • Dina Contella, deputy manager, NASA’s International Space Station Program
  • Sarah Walker, director, Dragon Mission Management, SpaceX
  • Kazuyoshi Kawasaki, associate director general, Space Exploration Center/Space Exploration Innovation Hub Center, JAXA

To participate in the teleconference, media must contact the NASA Johnson newsroom by 5 p.m., Aug. 7, at: jsccommu@mail.nasa.gov or 281-483-5111. To ask questions, media must dial in no later than 10 minutes before the start of the call. The agency’s media credentialing policy is available online.

Find full mission coverage, NASA’s commercial crew blog, and more information about the Crew-10 mission at:

https://www.nasa.gov/commercialcrew

-end-

Joshua Finch
Headquarters, Washington
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joshua.a.finch@nasa.gov

Sandra Jones / Joseph Zakrzewski
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov / joseph.a.zakrzewski@nasa.gov

Steve Siceloff / Stephanie Plucinsky
Kennedy Space Center, Florida
321-867-2468
steven.p.siceloff@nasa.gov / stephanie.n.plucinsky@nasa.gov

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Snapshot Wisconsin Celebrates 10 Years and 100 Million Photos Collected!

Wed, 08/06/2025 - 4:42pm
A white-tailed deer fawn photographed on a Snapshot Wisconsin trail camera in Vernon County, WI Credit: WI DNR

The Snapshot Wisconsin project recently collected their 100 millionth trail camera photo! What’s more, this milestone coincides with the project’s 10-year anniversary. Congratulations to the team and everyone who’s participated!

Snapshot Wisconsin utilizes a statewide network of volunteer-managed trail cameras to monitor and better understand the state’s diverse wildlife from white-tailed deer to snowshoe hares, whooping cranes, and much more.

“It’s been amazing to get a glimpse of our wild treasures via the Snapshot lens,” said one volunteer. “Satisfying to help advance wildlife research in the digital age.”

Snapshot Wisconsin was launched in 2013 with help from a NASA grant, and is overseen by the Wisconsin Department of Natural Resources. It recently won a new grant from NASA’s Citizen Science for Earth Systems Program.

Volunteer classifications of the species present in trail camera photos have fueled many different scientific investigations over the years. You, too, can get involved in the merriment by visiting the project’s site on the Zooniverse crowdsourcing platform and helping classify their latest photo season today!

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NASA Supercomputers Take on Life Near Greenland’s Most Active Glacier

Wed, 08/06/2025 - 3:00pm

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Preparations for Next Moonwalk Simulations Underway (and Underwater) Ocean currents swirl around North America (center left) and Greenland (upper right) in this data visualization created using NASA’s ECCO model. Advanced computing is helping oceanographers decipher hot spots of phytoplankton growth.NASA’s Scientific Visualization Studio

As Greenland’s ice retreats, it’s fueling tiny ocean organisms. To test why, scientists turned to a computer model out of JPL and MIT that’s been called a laboratory in itself.

Runoff from Greenland’s ice sheet is kicking nutrients up from the ocean depths and boosting phytoplankton growth, a new NASA-supported study has found. Reporting in Nature Communications: Earth & Environment, the scientists used state-of-the art-computing to simulate marine life and physics colliding in one turbulent fjord. Oceanographers are keen to understand what drives the tiny plantlike organisms, which take up carbon dioxide and power the world’s fisheries.

Greenland’s mile-thick ice sheet is shedding some 293 billion tons (266 billion metric tons) of ice per year. During peak summer melt, more than 300,000 gallons (1,200 cubic meters) of fresh water drain into the sea every second from beneath Jakobshavn Glacier, also known as Sermeq Kujalleq,the most active glacier on the ice sheet. The waters meet and tumble hundreds of feet below the surface.

Teal-colored phytoplankton bloom off the Greenland coast in this satellite image captured in June 2024 by NASA’s PACE (Plankton, Aerosol, Cloud, ocean Ecosystem) mission.NASA

The meltwater plume is fresh and more buoyant than the surrounding saltwater. As it rises, scientists have hypothesized, it may be delivering nutrients like iron and nitrate — a key ingredient in fertilizer — to phytoplankton floating at the surface.

Researchers track these microscopic organisms because, though smaller by far than a pinhead, they’re titans of the ocean food web. Inhabiting every ocean from the tropics to the polar regions, they nourish krill and other grazers that, in turn, support larger animals, including fish and whales.

Previous work using NASA satellite data found that the rate of phytoplankton growth in Arctic waters surged 57% between 1998 and 2018 alone. An infusion of nitrate from the depths would be especially pivotal to Greenland’s phytoplankton in summer, after most nutrients been consumed by prior spring blooms. But the hypothesis has been hard to test along the coast, where the remote terrain and icebergs as big as city blocks complicate long-term observations.

“We were faced with this classic problem of trying to understand a system that is so remote and buried beneath ice,” said Dustin Carroll, an oceanographer at San José State University who is also affiliated with NASA’s Jet Propulsion Laboratory in Southern California. “We needed a gem of a computer model to help.”

Sea of Data

To re-create what was happening in the waters around Greenland’s most active glacier, the team harnessed a model of the ocean developed at JPL and the Massachusetts Institute of Technology in Cambridge. The model ingests nearly all available ocean measurements collected by sea- and satellite-based instruments over the past three decades. That amounts to billions of data points, from water temperature and salinity to pressure at the seafloor. The model is called Estimating the Circulation and Climate of the Ocean-Darwin (ECCO-Darwin for short).

Simulating “biology, chemistry, and physics coming together” in even one pocket along Greenland’s 27,000 miles (43,000 kilometers) of coastline is a massive math problem, noted lead author Michael Wood, a computational oceanographer at San José State University. To break it down, he said the team built a “model within a model within a model” to zoom in on the details of the fjord at the foot of the glacier.

Using supercomputers at NASA’s Ames Research Center in Silicon Valley, they calculated that deepwater nutrients buoyed upward by glacial runoff would be sufficient to boost summertime phytoplankton growth by 15 to 40% in the study area.

More Changes in Store

Could increased phytoplankton be a boon for Greenland’s marine animals and fisheries? Carroll said that untangling impacts to the ecosystem will take time. Melt on the Greenland ice sheet is projected to accelerate in coming decades, affecting everything from sea level and land vegetation to the saltiness of coastal waters.

“We reconstructed what’s happening in one key system, but there’s more than 250 such glaciers around Greenland,” Carroll said. He noted that the team plans to extend their simulations to the whole Greenland coast and beyond.

Some changes appear to be impacting the carbon cycle both positively and negatively: The team calculated how runoff from the glacier alters the temperature and chemistry of seawater in the fjord, making it less able to dissolve carbon dioxide. That loss is canceled out, however, by the bigger blooms of phytoplankton taking up more carbon dioxide from the air as they photosynthesize.

Wood added: “We didn’t build these tools for one specific application. Our approach is applicable to any region, from the Texas Gulf to Alaska. Like a Swiss Army knife, we can apply it to lots of different scenarios.”

News Media Contacts

Jane J. Lee / Andrew Wang
Jet Propulsion Laboratory, Pasadena, Calif.
626-379-6874 / 818-354-0307
jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov 

Written by Sally Younger

2025-101

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NASA’s Perseverance Rover Captures Mars Vista As Clear As Day

Wed, 08/06/2025 - 2:53pm
Captured at a location called “Falbreen,” this enhanced-color mosaic features deceptively blue skies and the 43rd rock abrasion (the white patch at center-left) of the NASA Perseverance rover’s mission at Mars. The 96 images stitched together to create this 360-degree view were acquired May 26, 2025.NASA/JPL-Caltech/ASU/MSSS In this natural-color version of the “Falbreen” panorama, colors have not been enhanced and the sky appears more reddish. Visible still is Perseverance’s 43rd rock abrasion (the white patch at center-left). The 96 images stitched together to create this 360-degree view were acquired May 26, 2025.NASA/JPL-Caltech/ASU/MSSS

‘Float rocks,’ sand ripples, and vast distances are among the sights to see in the latest high-resolution panorama by the six-wheeled scientist.

The imaging team of NASA’s Perseverance Mars rover took advantage of clear skies on the Red Planet to capture one of the sharpest panoramas of its mission so far. Visible in the mosaic, which was stitched together from 96 images taken at a location the science team calls “Falbreen,” are a rock that appears to lie on top of a sand ripple, a boundary line between two geologic units, and hills as distant as 40 miles (65 kilometers) away. The enhanced-color version shows the Martian sky to be remarkably clear and deceptively blue, while in the natural-color version, it’s reddish.

“Our bold push for human space exploration will send astronauts back to the Moon,” said Sean Duffy, acting NASA administrator. “Stunning vistas like that of Falbreen, captured by our Perseverance rover, are just a glimpse of what we’ll soon witness with our own eyes. NASA’s groundbreaking missions, starting with Artemis, will propel our unstoppable journey to take human space exploration to the Martian surface. NASA is continuing to get bolder and stronger.”

The rover’s Mastcam-Z instrument captured the images on May 26, 2025, the 1,516th Martian day, or sol, of Perseverance’s mission, which began in February 2021 on the floor of Jezero Crater. Perseverance reached the top of the crater rim late last year.

“The relatively dust-free skies provide a clear view of the surrounding terrain,” said Jim Bell, Mastcam-Z’s principal investigator at Arizona State University in Tempe. “And in this particular mosaic, we have enhanced the color contrast, which accentuates the differences in the terrain and sky.”

Buoyant Boulder

One detail that caught the science team’s attention is a large rock that appears to sit atop a dark, crescent-shaped sand ripple to the right of the mosaic’s center, about 14 feet (4.4 meters) from the rover. Geologists call this type of rock a “float rock” because it was more than likely formed someplace else and transported to its current location. Whether this one arrived by a landslide, water, or wind is unknown, but the science team suspects it got here before the sand ripple formed.

The bright white circle just left of center and near the bottom of the image is an abrasion patch. This is the 43rd rock Perseverance has abraded since it landed on Mars. Two inches (5 centimeters) wide, the shallow patch is made with the rover’s drill and enables the science team to see what’s beneath the weathered, dusty surface of a rock before deciding to drill a core sample that would be stored in one of the mission’s titanium sample tubes.

The rover made this abrasion on May 22 and performed proximity science (a detailed analysis of Martian rocks and soil) with its arm-mounted instruments two days later. The science team wanted to learn about Falbreen because it’s situated within what may be some of the oldest terrain Perseverance has ever explored — perhaps even older than Jezero Crater.

Tracks from the rover’s journey to the location can be seen toward the mosaic’s right edge. About 300 feet (90 meters) away, they veer to the left, disappearing from sight at a previous geologic stop the science team calls “Kenmore.”

A little more than halfway up the mosaic, sweeping from one edge to the other, is the transition from lighter-toned to darker-toned rocks. This is the boundary line, or contact, between two geologic units. The flat, lighter-colored rocks nearer to the rover are rich in the mineral olivine, while the darker rocks farther away are believed to be much older clay-bearing rocks.

More About Perseverance

NASA’s Jet Propulsion Laboratory, which is managed for the agency by Caltech, built and manages operations of the Perseverance rover on behalf of NASA’s Science Mission Directorate in Washington, as part of NASA’s Mars Exploration Program portfolio. Arizona State University leads the operations of the Mastcam-Z instrument, working in collaboration with Malin Space Science Systems in San Diego, on the design, fabrication, testing, and operation of the cameras.

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

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NASA Astronaut Barry “Butch” Wilmore Retires

Wed, 08/06/2025 - 1:53pm
NASA Astronaut Barry “Butch” WilmoreNASA/Aubrey Gemignani

After 25 years at NASA, flying in four different spacecraft, accumulating 464 days in space, astronaut and test pilot Butch Wilmore has retired from NASA.

The Tennessee native earned a bachelor’s and a master’s degree in electrical engineering from Tennessee Technological University and a master’s degree in aviation systems from the University of Tennessee.

Wilmore is a decorated U.S. Navy captain who has flown numerous tactical aircraft operationally while deploying aboard four aircraft carriers during peacetime and combat operations. A graduate of the U.S. Naval Test Pilot School, he went on to serve as a test pilot before NASA selected him to become an astronaut in 2000.

“Butch’s commitment to NASA’s mission and dedication to human space exploration is truly exemplary,” said Steve Koerner, acting director of NASA’s Johnson Space Center in Houston. “His lasting legacy of fortitude will continue to impact and inspire the Johnson workforce, future explorers, and the nation for generations. On behalf of NASA’s Johnson Space Center, we thank Butch for his service.”

During his time at NASA, Wilmore completed three missions launching aboard the space shuttle Atlantis, Roscosmos Soyuz, and Boeing Starliner to the International Space Station. Wilmore also returned to Earth aboard a SpaceX Dragon spacecraft. Additionally, he conducted five spacewalks, totaling 32 hours outside the orbital laboratory.  

Throughout his career, Butch has exemplified the technical excellence of what is required of an astronaut. His mastery of complex systems, coupled with his adaptability and steadfast commitment to NASA’s mission, has inspired us all,” said Joe Acaba, chief of the Astronaut Office at NASA Johnson. “As he steps into this new chapter, that same dedication will no doubt continue to show in whatever he decides to do next.”

Most recently, Wilmore launched aboard Boeing’s Starliner spacecraft on June 5, 2024, for its first crewed flight test mission, arriving at the space station the following day. While aboard the station, Wilmore completed numerous tasks, including a spacewalk to help remove a radio frequency group antenna assembly from the station’s truss and collected samples and surface material for analysis from the Destiny laboratory and the Quest airlock.

“From my earliest days, I have been captivated by the marvels of creation, looking upward with an insatiable curiosity. This curiosity propelled me into the skies, and eventually to space, where the magnificence of the cosmos mirrored the glory of its creator in ways words can scarcely convey,” said Wilmore. “Even as I ventured beyond Earth’s limits, I remained attuned to the beauty and significance of the world below, recognizing the same intricate design evident among the stars is also woven into the fabric of life at home.”

Learn more about how NASA explores the unknown and innovates for the benefit of humanity at:

https://www.nasa.gov/

Courtney Beasley

Johnson Space Center, Houston

281-910-4989

courtney.m.beasley@nasa.gov

Categories: NASA

Curiosity Looks Back Toward Its Landing Site

Wed, 08/06/2025 - 12:15pm
This view of tracks trailing NASA’s Curiosity rover was captured July 26, 2025, as the rover simultaneously relayed data to a Mars orbiter.NASA/JPL-Caltech

NASA’s Curiosity rover captured a view of its tracks on July 26, 2025. The robotic scientist is now exploring a region of lower Mount Sharp, a 3-mile-tall (5-kilometer-tall) mountain. The pale peak of the mountain can be seen at top right; the rim of Gale Crater, within which the mountain sits, is on the horizon at top left. Curiosity touched down on the crater floor 13 years ago.

Recently, the rover rolled into a region filled with boxwork formations. Studying these formations could reveal whether microbial life could have survived in the Martian subsurface eons ago, extending the period of habitability farther into when the planet was drying out. Read more about the detective work Curiosity is doing on Mars.

Image credit: NASA/JPL-Caltech

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Mississippi Attorney Serves NASA and the Nation

Wed, 08/06/2025 - 10:00am
Nathan Jermyn frequented NASA Stennis on field trips when he was younger. Now, he works as an attorney-advisor supporting NASA Stennis and the NASA Shared Services Center. NASA/Danny Nowlin

Before Nathan Jermyn could dig into the legal frameworks at NASA, he had to answer a different call.

Jermyn participated in a one-day orientation in the summer of 2023 to begin work as an attorney-advisor supporting NASA’s Stennis Space Center and the NASA Shared Services Center near Bay St. Louis, Mississippi.

However, the Biloxi, Mississippi, native shipped out just a week later with the Mississippi Army National Guard to provide military legal counsel for nearly six months in support of Operation Spartan Shield and Operation Inherent Resolve.

The decorated military veteran returned to NASA in January 2024 to fully immerse himself as a member of the contract and procurement practice group for the NASA Office of the General Counsel.

“Even though I have been working here for two years, sometimes it does not feel real,” Jermyn said.

As a member of the contract and procurement law team, Jermyn assists with contract- and procurement-related topics for NASA Stennis and the NASA Shared Services Center to ensure taxpayer funds are used responsibly.

He also is a member of NASA’s Freedom of Information Act (FOIA) team and provides legal reviews and advice for FOIA requests as the agency creates a cohesive and effective knowledge-sharing environment.

The most interesting thing about his work is seeing how the big picture comes together, how each small detail and decision adds up to something more meaningful.  

“Our office is a small piece, and it is amazing to see how our efforts intertwine with NASA Stennis and the NASA Shared Services Center operations and NASA,” he said. “It is also amazing the lengths everyone will go to help each other accomplish the mission.”

Before joining NASA, Jermyn graduated from The University of Southern Mississippi with a bachelor’s degree in business administration and a law degree from Mississippi College School of Law.

The Gulfport, Mississippi, resident initially practiced criminal law. Jermyn credits the team he works with at NASA for helping him navigate the complexities of government contract law.

“Having a team that supports you and teaches you every day really expedites the learning process,” he said. “Our team puts a heavy emphasis on learning, development, and teamwork.”

Jermyn is most excited to see how NASA continues to explore the universe moving forward, which includes the Artemis campaign of exploring the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars. Artemis II is scheduled for 2026.

“I wholeheartedly believe humanity is destined for the stars and NASA is in prime position to lead that charge,” he said.

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Curiosity Blog, Sols 4618-4619: The Boxwork Structures Continue to Call to Us

Tue, 08/05/2025 - 4:58pm
Curiosity Navigation

3 min read

Curiosity Blog, Sols 4618-4619: The Boxwork Structures Continue to Call to Us NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on Aug. 1, 2025 — Sol 4616, or Martian day 4,616 of the Mars Science Laboratory mission — at 03:36:56 UTC.NASA/JPL-Caltech

Written by Ashley Stroupe, Mission Operations Engineer and Rover Planner at NASA’s Jet Propulsion Laboratory

Earth planning date: Friday, Aug. 1, 2025.

Now that we have reached August, our “landiversary” (anniversary of landing — Aug. 5 PDT) is less than a week away! The team is looking forward to being able to celebrate the milestone of our rover becoming a teenager at 13. Today’s image is a beautiful back-lit late afternoon image of the nearby mountains and the distant crater rim. These views make working on Mars never get old!

The first sol of today’s plan is very busy because we will only have data from the first sol down in time for planning on Monday. Today I was working as a Rover Planner, supporting both arm and drive activities. We start first thing with arm activities; we DRT brush and do APXS integration on the target “San Cristóbal,” which is a bedrock target, and the only place in the workspace smooth and flat enough for us to brush. 

After a brief nap, we have an extensive imaging campaign. We take Mastcam images of the AEGIS target from the previous plan and two potential vein targets “Rio Satja” and “Río Ichilo.”  We then take Mastcam stereo mosaics of boxwork targets “Pontezuelo” and “Catedrales de Tara.”  Additionally we have stereo mosaics of “Llanos de Challe,” a transition between the bedrock in the boxwork hollow and the boxwork ridge, a nearby light-toned exposure, and some additional troughs and ridges. ChemCam then takes a LIBS observation of “Airport Domes,” which is another hollow in the boxworks. Finally, we take a ChemCam RMI and a Mastcam of Pontezuelo.

After finishing all the imaging, we continue with the rest of the arm activities. We split the arm activities to accommodate conflicting constraints — both APXS and ChemCam both need to be as early as possible. In this set of arm activities, we begin with MAHLI imaging of the two targets, San Cristóbal and “Salar de Agua Amara,” which consists of delicate branching structures likely made by groundwater. 

After another short nap, we do a small adjustment in our position to get another interesting piece of bedrock ridge in our workspace. In order to approach it at a good angle, we first drive parallel to the ridge to be lined up with the target, and then we turn and drive straight to it. Due to constraints on how we like to park at targets, sometimes these shorter drives can be more complicated than longer ones — but today it was simpler. After completing the drive, we unstow the arm to get a clear view of our workspace for Monday’s planning as well as our standard post-drive imaging and then Curiosity goes to sleep for the night. 

The second sol of the plan is a bit more leisurely. Around midday, Curiosity will be taking some atmospheric observations, including a Navcam dust-devil survey and a south-facing suprahorizon movie, followed by an AEGIS activity where the rover gets to pick targets and observe them herself. Then, early the next morning, Curiosity will wake up to take some additional atmospheric observations, including Navcam zenith and suprahorizon movies, Navcam line-of-sight toward the crater rim, and a Mastcam solar tau to measure dust in the atmosphere. Finally, she’ll get a short nap before waking up to start the next plan.

Learn more about Curiosity’s science instruments For more Curiosity blog posts, visit MSL Mission Updates Share Details Last Updated Aug 05, 2025 Related Terms Explore More 4 min read Curiosity Blog, Sols 4616-4617: Standing Tall on the Ridge Article 1 day ago 2 min read Curiosity Blog, Sols 4614-4615: Driving Along the Boxwork Article 7 days ago 3 min read Spheres in the Sand Article 7 days ago Keep Exploring Discover More Topics From NASA Mars

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NASA Selects Six Companies to Provide Orbital Transfer Vehicle Studies

Tue, 08/05/2025 - 4:09pm
Rendering of Quantum’s Ranger spacecraft engineered for rapid maneuverability and adaptability, enabling multi-destination delivery for missions from low Earth orbit to cislunar space.Credit: Arrow Science and Technology/Quantum Space   Rendering of Blue Ring, a large high-mobility space platform providing full-service payload delivery, on-board edge computing, hosting, and end-to-end mission operations.Credit: Blue Origin Rendering of Firefly’s Elytra Dark orbital vehicle deploying Firefly’s Blue Ghost lander into lunar orbit.Credit: Firefly Aerospace Mira, a high-thrust, highly maneuverable spacecraft for payload hosting and deployment.Credit: Impulse Space Helios, a high-energy kick stage to rapidly deliver payloads to medium Earth orbit, geosynchronous orbit, and beyond.Credit: Impulse Space Pictured, two spacecraft for NASA and the University of California at Berkeley’s Space Sciences Laboratory’s ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) mission. The spacecraft are based on Rocket Lab’s Explorer spacecraft, a configurable, high delta-V interplanetary platform.Credit: Rocket Lab Rocket Lab’s reusable rocket Neutron, a medium-lift class rocket designed for reuse and launch frequency to deliver cost-effective, reliable, and responsive launch for commercial and government missions.Credit: Rocket Lab

NASA has selected six companies to produce studies focused on lower-cost ways to launch and deliver spacecraft of various sizes and forms to multiple, difficult-to-reach orbits.

The firm-fixed-price awards comprise nine studies with a maximum total value of approximately $1.4 million. The awardees are:

  • Arrow Science and Technology LLC, Webster, Texas
  • Blue Origin LLC, Merritt Island, Florida
  • Firefly Aerospace Inc., Cedar Park, Texas
  • Impulse Space Inc., Redondo Beach, California
  • Rocket Lab, Long Beach, California
  • United Launch Services LLC, Centennial, Colorado

“With the increasing maturity of commercial space delivery capabilities, we’re asking companies to demonstrate how they can meet NASA’s need for multi-spacecraft and multi-orbit delivery to difficult-to-reach orbits beyond current launch service offerings,” said Joe Dant, orbital transfer vehicle strategic initiative owner for the Launch Services Program at NASA’s Kennedy Space Center in Florida. “This will increase unique science capability and lower the agency’s overall mission costs.”

Each of the six companies will deliver studies exploring future application of orbital transfer vehicles for NASA missions:

Arrow will partner with Quantum Space for its study. Quantum’s Ranger provides payload delivery service as a multi-mission spacecraft engineered for rapid maneuverability and adaptability, enabling multi-destination delivery for missions from low Earth orbit to lunar orbit.

Blue Origin will produce two studies, including one for Blue Ring, a large, high-mobility space platform providing full-service payload delivery, on-board edge computing, hosting, and end-to-end mission operations. It uses hybrid solar-electric and chemical propulsion capability to reach geostationary, cislunar, Mars, and interplanetary destinations. The second is a New Glenn upper stage study.

Firefly’s line of Elytra orbital vehicles offers on-demand payload delivery, imaging, long-haul communications, and domain awareness across cislunar space. Firefly’s Elytra Dark is equipped to serve as a transfer vehicle and enable ongoing operations in lunar orbit for more than five years.

Impulse Space will produce two studies. The company provides in-space mobility with two vehicles, Mira and Helios. Mira is a high-thrust, highly maneuverable spacecraft for payload hosting and deployment, while Helios is a high-energy kick stage to rapidly deliver payloads from low Earth to medium Earth orbits, geostationary orbits and beyond.

Rocket Lab’s two studies will feature the upper stage of the company’s Neutron rocket, as well as a long-life orbital transfer vehicle based on its Explorer spacecraft. Both vehicles are equipped with their own propulsion systems and other subsystems for missions to medium Earth and geosynchronous orbit and deep space destinations like the Moon, Mars, and near-Earth asteroids.

United Launch Alliance will assess the cislunar mission capabilities of an extended-duration Centaur V upper stage. Centaur would be capable of directly delivering multiple rideshare spacecraft to two different orbital destinations in cislunar space, avoiding the need for an additional rocket stage or orbital transfer vehicle.

The studies will be complete by mid-September. NASA will use the findings to inform mission design, planning, and commercial launch acquisition strategies for risk-tolerant payloads, with a possibility of expanding delivery services to larger-sized payloads and to less risk-tolerant missions in the future.

NASA’s Launch Services Program selected providers through the agency’s VADR (Venture-Class Acquisition of Dedicated and Rideshare Launch Services) contract, which helps foster growth of the U.S. commercial launch market, enabling greater access to space at a lower cost for science and technology missions.

For more information about NASA’s Launch Services Program, visit:

https://www.nasa.gov/launch-services-program

-end-

Josh Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov

Leejay Lockhart
Kennedy Space Center, Florida
321-747-8310
leejay.lockhart@nasa.gov

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NASA’s SpaceX Crew-10 Looks Back at Science Mission

Tue, 08/05/2025 - 3:44pm
7 Min Read NASA’s SpaceX Crew-10 Looks Back at Science Mission NASA’s SpaceX Crew-10 Looks Back at Science Mission

NASA’s SpaceX Crew-10 mission with agency astronauts Anne McClain and Nichole Ayers, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov is preparing to return to Earth in early August after a long-duration mission aboard the International Space Station. During their stay, McClain, Ayers, and Onishi completed dozens of experiments and technology demonstrations, helping push the boundaries of scientific discovery aboard the orbiting laboratory.

Here’s a look at some scientific milestones accomplished during the Crew-10 mission:

Orbital effects on plants NASA

The canisters floating in the cupola of the International Space Station contain wild-type and genetically-modified thale cress plants for the Rhodium Plant LIFE experiment. The investigation studies how radiation and gravity environments at different orbital altitudes affect plant growth by comparing Crew-10 data with plants flown aboard the Polaris Dawn mission, which flew deeper into space. Studies have shown microgravity affects growth rates, and a better understanding of the mechanisms behind this could improve plant growth techniques in space and on Earth.

Solar spacewalk NASA

NASA astronaut Anne McClain conducts a spacewalk to upgrade the International Space Station’s power generation systems, which include main solar arrays like the one visible behind her. McClain is installing hardware to support an IROSA (International Space Station Roll-Out Solar Array), a type of array that is more compact and produces more power than the station’s original ones. The IROSAs were first demonstrated aboard the orbiting laboratory in June 2017, and eight have been installed to augment the power available for scientific research and other activities.

Microalgae on the menu NASA

NASA astronaut Nichole Ayers uses the International Space Station’s Space Automated Bioproduct Laboratory to process samples for SOPHONSTER, a study of microgravity’s effects on the protein yield of microalgae. These organisms are highly nutritious, producing amino acids, fatty acids, B vitamins, iron, and fiber. The microalgae could provide sustainable meat and dairy alternatives during long-duration space missions. It also could be used to make biofuels and bioactive compounds in medicines in space and on Earth.

Looking down on lightning NASA

The International Space Station orbits more than 250 miles above Earth, giving astronauts a unique view of their home planet, where they can photograph familiar places and interesting phenomena. While passing over a stormy night, NASA astronaut Nichole Ayers captured this image of simultaneous lightning at the top of two thunderstorms. Scientists use instruments installed on the space station to study lightning and other weather conditions in Earth’s upper atmosphere. This research helps protect communication systems and aircraft while improving atmospheric models and weather predictions.

Testing the tips of DNA

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NASA

In this time-lapse video, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi and NASA astronaut Nichole Ayers harvest samples for the APEX-12 investigation, which examines how space radiation affects telomere activity in thale cress plants. Telomeres, which are repetitive DNA sequences that protect the ends of chromosomes, become shorter each time a cell divides and indicate cell aging. The APEX-12 investigation could clarify the role of telomeres in aging and diseases and help scientists equip plants and other organisms for the stress of long-duration spaceflight.

Microscopic motion NASA

A fluorescent microscope, known as ELVIS, captures the motion of microscopic algae and bacteria in 3D, a new capability aboard the International Space Station. The technology could be helpful in various applications in space and on Earth, such as monitoring water quality and detecting potentially infectious organisms. NASA astronaut Anne McClain prepares bacterial samples for viewing with the microscope.

How cells sense gravity NASA

Individual cells in our bodies can respond to the effects of gravity, but how they do this is largely unknown. The Cell Gravisensing investigation is an effort to observe the mechanism that enables cells to sense gravity and could lead to therapies to treat muscle and bone conditions, like muscle atrophy during long-duration spaceflight and osteoporosis on Earth. JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi processes research samples in the International Space Station’s Kibo laboratory module.

Water works NASA

NASA astronauts Nichole Ayers and Anne McClain work on installing hardware for the International Space Station’s Exploration Potable Water Dispenser. Scientists are evaluating the device’s water sanitization and microbial growth reduction technology. The dispenser provides room temperature and hot water for crew consumption and food preparation. This technology could be adopted for future exploration missions.

Free-flying camera NASA

Astronaut Takuya Onishi of JAXA (Japan Aerospace Exploration Agency) monitors the JEM Internal Ball Camera 2 as it floats through the International Space Station. The free-flying, rechargeable camera provides a visual field outside the other cameras installed aboard the space station. JAXA is testing the robot’s ability to capture video and imagery of scientific experiments and other activities, which could free up crew time for research and other duties.

Two rings to pin them all NASA

NASA astronaut Nichole Ayers sets up the space station’s Ring Sheared Drop device, which uses surface tension to pin a drop of liquid between two rings. The device makes it possible to study liquid proteins without a solid container, eliminating interactions between the solutions and container walls that can affect results. The Ring Sheared Drop-IBP-2 experiment studies the behavior of protein fluids in microgravity and tests predictive computer models. Better models could help advance manufacturing processes in space and on Earth for next-generation medicines to treat cancers and other diseases.

Crystallization research NASA

NASA astronaut Anne McClain swaps out hardware in the International Space Station’s Advanced Space Experiment Processor-4, which enables physical science and crystallization research. A current investigation uses the processor to demonstrate technology that may be able to produce medications during deep space missions and improve pharmaceutical manufacturing on Earth.

Monitoring astronaut health NASA

NASA astronaut Anne McClain helps JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi collect a sample of his blood. Analysis of blood samples is one tool NASA uses to continuously monitor crew health, including cardiovascular and immune system functions, bone and muscle mass changes, nutritional and metabolic status, and mental well-being. Crew members aboard the International Space Station also participate in various ongoing studies to better understand how different body systems adapt to weightlessness.

Catching a corona NASA/KASI/INAF/CODEX

This animated, color-coded heat map shows temperature changes in the Sun’s outer atmosphere, or corona, over several days, with red indicating hotter regions and purple showing cooler ones. Scientists can observe these changes thanks to the International Space Station’s CODEX, which collected data during the Crew-10 mission. The instrument uses a coronagraph to block out sunlight and reveal details in the Sun’s corona. Data from this investigation could help scientists understand the energy source of the solar wind, a flow of charged particles from the Sun that constantly bombards Earth.

Expanding in-space crystallization NASA

Astronaut Takuya Onishi of JAXA (Japan Aerospace Exploration Agency) services the International Space Station’s Advanced Space Experiment Processor-4 in preparation for ADSEP-Industrial Crystallization Cassette. This investigation tests new hardware that scales up research and could enable in-space production of pharmaceuticals and other materials for commercial space applications.

Sowing seeds in space NASA

NASA astronaut Nichole Ayers prepares mixture tubes containing samples for Nanoracks Module-9 Swiss Chard. This student-designed experiment examines whether the size, shape, color, and nutritional content of Swiss chard seeds germinated in space differ from those grown on Earth. The International Space Station hosts ongoing plant research as a source of food and other benefits, including contributing to astronaut well-being, for future long-duration missions.

Protecting astronaut vision NASA

Spaceflight can cause changes to eye structure and vision, so crew members monitor eye health throughout their missions. Astronaut Takuya Onishi of JAXA (Japan Aerospace Exploration Agency), assisted by NASA astronaut Nichole Ayers, conducts an eye exam aboard the International Space Station using optical coherence tomography. This technology uses reflected light to produce 3D images of the retina, nerve fibers, and other eye structures and layers.

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NASA Science Activation Teams Unite to Support Neurodiverse Learners with Public Libraries

Tue, 08/05/2025 - 3:26pm
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3 min read

NASA Science Activation Teams Unite to Support Neurodiverse Learners with Public Libraries

On July 16, 2025, more than 400 public library staff from across the United States joined a powerful webinar, Serving Neurodiverse Library Patrons and Colleagues, hosted by two NASA Science Activation program teams: NASA@ My Library and NASA’s Neurodiversity Network (N3). The event brought together researchers, library professionals, and individuals with lived experience of neurodiversity to share insights and best practices for creating more inclusive and supportive environments in libraries.

Designed to equip library staff with tools and awareness, this interactive webinar explored how libraries can better serve neurodiverse patrons, such as those with autism, attention deficit hyperactivity disorder (ADHD), dyslexia, and other cognitive variations, while also supporting neurodiverse colleagues. Breakout rooms allowed participants to dive deeper into specific topics, including accessible program facilitation, supporting neurodiverse colleagues, and an “Ask Me Anything” space that encouraged open dialogue and learning.

Library staff everywhere are invited to watch the recorded webinar on YouTube and learn more about serving neurodiverse patrons and colleagues.

The collaboration between NASA@ My Library (led by the Space Science Institute), and NASA’s Neurodiversity Network (N3) (led by Sonoma State University), reflects a shared commitment to broadening participation in STEM (Science, Technology, Engineering, and Mathematics). NASA@ My Library works with public libraries nationwide to engage diverse communities in NASA science and discoveries. N3 focuses on empowering neurodiverse learners – particularly those in high school – with opportunities to engage with NASA science and explore potential STEM career pathways.

Participants left inspired, and the demand for more is clear: attendees and speakers alike expressed interest in continuing the conversation, requesting additional training, and expressing interest in organizing a future conference centered on neurodiversity and inclusion in libraries.

Youth Services Librarian and webinar panelist Molly Creveling shared, “This was such a great opportunity, and I’m extremely proud to have been able to contribute to it, I wish I was able to attend everyone’s break out room!” And participant Jason Wood expressed in the chat, “Really, really appreciate this webinar. This is one of those days I am extra proud to be a librarian. Thank you all.” Another enthusiast participant said, “This was the best webinar I’ve attended in years…more of this!”

Watch the recorded webinar.

As NASA continues to reach for the stars, it’s equally committed to ensuring that the journey is accessible to all – especially those whose unique ways of thinking and learning bring fresh perspectives to science, exploration, and discovery.

NASA@ My Library and N3, supported by NASA under cooperative agreement award numbers NNX16AE30A and  80NSSC21M0004, are part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn

Presenters included staff from NASA’s Neurodiversity Network, NASA@ My Library, Education Development Center, and the Lunar and Planetary Institute. Share Details Last Updated Aug 05, 2025 EditorNASA Science Editorial Team Related Terms Explore More 4 min read STEM Educators Are Bringing Hands-On NASA Science into Virginia Classrooms Article 1 day ago 4 min read NUBE: New Card Game Helps Learners Identify Cloud Types Through Play Article 4 days ago 3 min read NASA eClips STEM Student Ambassadors Light Up CNU’s 2025 STEM Community Day Article 2 weeks ago Keep Exploring Discover More Topics From NASA James Webb Space Telescope

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What is NASA’s Distributed Spacecraft Autonomy?

Tue, 08/05/2025 - 12:58pm

Software designed to give spacecraft more autonomy could support a future where swarms of satellites navigate and complete scientific objectives with limited human intervention.

Caleb Adams, Distributed Spacecraft Autonomy project manager, monitors testing alongside the test racks containing 100 spacecraft computers at NASA’s Ames Research Center in California’s Silicon Valley. The DSA project develops and demonstrates software to enhance multi-spacecraft mission adaptability, efficiently allocate tasks between spacecraft using ad-hoc networking, and enable human-swarm commanding of distributed space missions. Credit: NASA/Brandon Torres Navarrete

Astronauts living and working on the Moon and Mars will rely on satellites to provide services like navigation, weather, and communications relays. While managing complex missions, automating satellite communications will allow explorers to focus on critical tasks instead of manually operating satellites.  

Long duration space missions will require teaming between systems on Earth and other planets. Satellites orbiting the Moon, Mars, or other distant areas face communications delays with ground operators which could limit the efficiency of their missions.  

The solution lies within the Distributed Spacecraft Autonomy (DSA) project, led by NASA’s Ames Research Center in California’s Silicon Valley, which tests how shared autonomy across distributed spacecraft missions makes spacecraft swarms more capable of self-sufficient research and maintenance by making decisions and adapting to changes with less human intervention. 

Adding autonomy to satellites makes them capable of providing services without waiting for commands from ground operators. Distributing the autonomy across multiple satellites, operating like a swarm, gives the spacecraft a “shared brain” to accomplish goals they couldn’t achieve alone. 

The DSA software, built by NASA researchers, provides the swarm with a task list, and shares each spacecraft’s distinct perspective – what it can observe, what its priorities are – and integrates those perspectives into the best plan of action for the whole swarm. That plan is supported by decision trees and mathematical models that help the swarm decide what action to take after a command is completed, how to respond to a change, or address a problem. 

Sharing the Workload

The first in-space demonstration of DSA began onboard the Starling spacecraft swarm, a group of four small satellites, demonstrating various swarm technologies. Operating since July 2023, the Starling mission continues providing a testing and validation platform for autonomous swarm operations. The swarm first used DSA to optimize scientific observations, deciding what to observe without pre-programmed instructions. These autonomous observations led to measurements that could have been missed if an operator had to individually instruct each satellite. 

The Starling swarm measured the electron content of plasma between each spacecraft and GPS satellites to capture rapidly changing phenomena in Earth’s ionosphere – where Earth’s atmosphere meets space. The DSA software allowed the swarm to independently decide what to study and how to spread the workload across the four spacecraft. 

Because each Starling spacecraft operates as an independent member within the swarm, if one swarm member was unable to accomplish its work, the other three swarm members could react and complete the mission’s goals. 

The Starling 1.0 demonstration achieved several firsts, including the first fully distributed autonomous operation of multiple spacecraft, the first use of space-to-space communications to autonomously share status information between multiple spacecraft, the first demonstration of fully distributed reactive operations onboard multiple spacecraft, the first use of a general-purpose automated reasoning system onboard a spacecraft, and the first use of fully distributed automated planning onboard multiple spacecraft. These achievements laid the groundwork for Starling 1.5+, an ongoing continuation of the satellite swarm’s mission using DSA.  

Advanced testing of DSA onboard Starling shows that distributed autonomy in spacecraft swarms can improve efficiencies while reducing the workload on human operators.Credit: NASA/Daniel Rutter A Helping Hand in Orbit 

After DSA’s successful demonstration on Starling 1.0, the team began exploring additional opportunities to use the software to support satellite swarm health and efficiency. Continued testing of DSA on Starling’s extended mission included PLEXIL (Plan Execution Interchange Language), a NASA-developed programming language designed for reliable and flexible automation of complex spacecraft operations. 

Onboard Starling, the PLEXIL application demonstrated autonomous maintenance, allowing the swarm to manage normal spacecraft operations, correct issues, or distribute software updates across individual spacecraft.  

Enhanced autonomy makes swarm operation in deep space feasible – instead of requiring spacecraft to communicate back and forth between their distant location and Earth, which can take minutes or hours depending on distance, the PLEXIL-enabled DSA software gives the swarm the ability to make decisions collaboratively to optimize their mission and reduce workloads. 

Simulated Lunar Swarming 

To understand the scalability of DSA, the team used ground-based flight computers to simulate a lunar swarm of virtual small spacecraft. The computers simulated a swarm that provides position, navigation, and timing services on the Moon, similar to GPS services on Earth, which rely on a network of satellites to pinpoint locations. 

The DSA team ran nearly one hundred tests over two years, demonstrating swarms of different sizes at high and low lunar orbits. The lessons learned from those early tests laid the groundwork for additional scalability studies. The second round of testing, set to begin in 2026, will demonstrate even larger swarms, using flight computers that could later go into orbit with DSA software onboard. 

The Future of Spacecraft Swarms 

Orbital and simulated tests of DSA are a launchpad to increased use of distributed autonomy across spacecraft swarms. Developing and proving these technologies increases efficiency, decreases costs, and enhances NASA’s capabilities opening the door to autonomous spacecraft swarms supporting missions to the Moon, Mars, and beyond.  

Milestones:
  • October 2018: DSA project development begins.
  • April 2020: Lunar position, navigation, and timing (LPNT) simulation demonstration development begins.
  • July 2023: DSA launches onboard the Starling spacecraft swarm.
  • March 2024: DSA experiments onboard Starling reach the necessary criteria for success.
  • July 2024: DSA software development begins for the Starling 1.5+ mission extension.
  • September 2024: LPNT simulation demonstration concludes successfully.
  • October 2024: DSA’s extended mission as part of Starling 1.5+ begins.
Partners:

NASA Ames leads the Distributed Spacecraft Autonomy and Starling projects. NASA’s Game Changing Development program within the agency’s Space Technology Mission Directorate provided funding for the DSA experiment. NASA’s Small Spacecraft Technology program within the Space Technology Mission Directorate funds and manages the Starling mission and the DSA project.  

Learn More: For researchers: For media:

Members of the news media interested in covering this topic should reach out to the NASA Ames newsroom.

Categories: NASA

NICER Status Updates

Tue, 08/05/2025 - 12:05pm
August 5, 2025

Science Observations Remain Paused for NASA’s NICER Telescope

Science operations by NASA’s NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station, remain paused as the team continues to evaluate the telescope’s systems after an issue developed with one of its motors. The motor is unable to move NICER beyond its current position side to side, and the telescope’s status has not changed since operations were halted June 17.

The primary goal is to move NICER into its stowed configuration in case it needs to accommodate space station activities, though the current placement does not pose a safety issue to the station or crew. The team currently does not have a timeframe for returning to science operations.

Photos taken by robotic cameras outside the station are helping eliminate external causes for the issue. Now the team is coordinating with space station personnel to perform troubleshooting maneuvers and determine potential causes within the payload.  

Since it began observing the X-ray universe in 2017, NICER has successfully demonstrated a form of deep space navigation that could be used for travel to Mars and beyond.

Designed for a prime mission of 18 months and now in its eighth year of operations, NICER has made groundbreaking measurements of neutron stars, which contain the densest matter in the universe that we can measure, and revolutionized our understanding of black holes, active galaxies, and other mysterious phenomena in our universe. Technology developed to test NICER before launch is being incorporated into prototype portable CT scanners, communications systems, and several other applications on Earth for the benefit of all.

June 24, 2025

NASA’s NICER Telescope Suspends Science Operations

NASA’s NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station, has paused observations due to a problem with one of the motors that drives its ability to track cosmic objects.

The NICER team paused operations June 17 when performance degradation in the motor began affecting science observations. Engineers are investigating the cause and potential solutions.

The telescope was installed near the space station’s starboard solar array in 2017. The NICER mission has successfully demonstrated a form of deep space navigation that could be used for travel to Mars and beyond. It has also made groundbreaking measurements of neutron stars, which contain the densest matter in the universe that we can measure, and revolutionized our understanding of black holes, active galaxies, and other mysterious phenomena in our universe.

April 17, 2025

Following Repair, NASA’s NICER Improves Daytime Measurements

A NASA X-ray telescope on the International Space Station called NICER, or Neutron star Interior Composition Explorer, has regained additional daytime observation capabilities thanks to repairs completed during a spacewalk and a reconfiguration of its detectors.

In May 2023, NICER developed a light leak in which unwanted sunlight began entering the instrument. Photos taken from inside the space station revealed several small areas of damage to the telescope’s thin thermal shields, which block sunlight while allowing X-rays through to the detectors. Nighttime observations were unaffected, and with operational adjustments, the NICER team was able to recover about 20% of station daytime observations.

In January, NASA astronaut Nick Hague installed nine patches to cover the largest areas of damage during a spacewalk. After resuming science operations, the NICER team determined the overall level of sunlight inside NICER had substantially reduced. Still, it experienced more visible-light interference than expected.

The NICER (Neutron star Interior Composition Explorer) X-ray telescope is reflected on NASA astronaut and Expedition 72 flight engineer Nick Hague’s spacesuit helmet visor in this high-flying “space-selfie” taken during a spacewalk on Jan. 16, 2025. NASA/Nick Hague

Close-up, high-resolution photos from the spacewalk allowed the team to see additional small holes and cracks in the thermal shields that were not previously visible. These accounted for the remaining sunlight intrusion.

After further analysis, the NICER team developed a novel approach to regaining additional daytime data collection.

Each X-ray that hits a NICER detector generates electrical charge that is sensed by a measurement/power unit (MPU). After so many hits, the detector resets — like emptying a cup before it overflows.

Sunlight can also create charge that accumulates in the detector, adding water to the metaphorical cup. There was so much sunlight entering NICER that the detectors were filling up with charge and resetting thousands of times for every X-ray detection. It overwhelmed the MPU’s ability to process the valid X-ray events.

Hague’s repair in January reduced the amount of sunlight entering NICER, which enabled the team to reconfigure the MPUs to ignore the sunlight-generated resets. After initial testing on the ground, the team updated one MPU before switching all seven. The changeover was completed March 12.

In combination with the patches, the reconfiguration has allowed NICER to return to collecting observations during more than 70% of station daytime, as the telescope continues to help us better understand the X-ray universe, including neutron stars, black holes, and other energetic phenomena. The team continues to look for more opportunities to improve NICER’s operations.

Jan. 24, 2025

NASA’s NICER Continues Science Operations Post Repair

NASA crew aboard the International Space Station installed patches to the agency’s NICER (Neutron star Interior Composition Explorer) mission during a spacewalk on Jan. 16. NICER, an X-ray telescope perched near the station’s starboard solar array, resumed science operations later the same day.

The patches cover areas of NICER’s thermal shields where damage was discovered in May 2023. These thin filters block sunlight while allowing X-rays to pass through. After the discovery, the NICER team restricted their observations during the station’s daytime to avoid overwhelming the mission’s sensitive detectors. Nighttime observations were unaffected, and the team was able to continue collecting data for the science community to make groundbreaking measurements using the instrument’s full capabilities.

The repair went according to plan. Data since collected shows the detectors behind the patched areas are performing better than before during station night, and the overall level of sunlight inside NICER during the daytime is reduced substantially.

While NICER experiences less interference from sunlight than before, after analyzing initial data, the team has determined the telescope still experiences more interference than expected. The installed patches cover areas of known damage identified using astronomical observations and from photos taken by both external robotic cameras and astronauts inside the space station. Measurements collected since the repair and close-up, high-resolution photos obtained during the spacewalk are providing new information that may point the way toward further daytime data collection.

In the meantime, NICER continues operations with its full measurement capabilities during orbit night to enable further trailblazing discoveries in time domain and multimessenger astrophysics.

June 8, 2023

Sunlight ‘Leak’ Impacting NASA’s NICER Telescope, Science Continues

On Tuesday, May 22, NASA’s NICER (Neutron Star Interior Composition Explorer), an X-ray telescope on the International Space Station, developed a “light leak,” in which unwanted sunlight enters the instrument. While analyzing incoming data since then, the team identified an impact to daytime observations. Nighttime observations seem to be unaffected.

The team suspects that at least one of the thin thermal shields on NICER’s 56 X-ray Concentrators has been damaged, allowing sunlight to reach its sensitive detectors.

To mitigate the effects on measurements, the NICER team has limited daytime observations to objects far away from the Sun’s position in the sky. The team has also updated commands to NICER that automatically lower its sensitivity during the orbital day to reduce the effects from sunlight contamination. The team is evaluating these changes and assessing additional measures to reduce the impact on science observations.

To date, more than 300 scientific papers have used NICER observations, and the team is confident that NICER will continue to produce world-class science.

Media contacts

Alise Fisher
202-358-2546
alise.m.fisher@nasa.gov
NASA Headquarters, Washington

Claire Andreoli
301-286-1940
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.

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Second Lady Usha Vance, NASA Astronaut Suni Williams Celebrate Reading

Tue, 08/05/2025 - 11:57am
NASA/Robert Markowitz

Second Lady Usha Vance and NASA astronaut Suni Williams listen to the audience in this image from Aug. 4, 2025. Ms. Vance joined Williams at NASA’s Johnson Space Center in Houston for a summer reading challenge event, through which the Second Lady encourages youth to seek adventure, imagination, and discovery between the pages of a book.

Image credit: NASA/Robert Markowitz

Categories: NASA

Curiosity Blog, Sols 4616-4617: Standing Tall on the Ridge

Mon, 08/04/2025 - 3:47pm
Curiosity Navigation

4 min read

Curiosity Blog, Sols 4616-4617: Standing Tall on the Ridge NASA’s Mars rover Curiosity acquired this image, showing the impressive landscape it is currently navigating. The rover is standing tall on the ridge, its shadow casting forward, and Mount Sharp towers over the scene in the distance. Curiosity captured this image with its Front Hazard Avoidance Camera (Front Hazcam) on July 30, 2025 — Sol 4614, or Martian day 4,614 of the Mars Science Laboratory mission — at 02:24:02 UTC.NASA/JPL-Caltech

Written by Susanne P. Schwenzer, Professor of Planetary Mineralogy at The Open University, UK

Earth planning date: Wednesday, July 30, 2025

The day started with a little celebration of NISAR, a new Earth observation satellite that made it successfully into orbit a few hours before our planning started. We joined in by saying “GO NISAR, NASA, JPL, and ISRO” (the Indian Space Research Organisation, NASA’s mission partner, which launched NISAR). Learn more at the NISAR mission hub. Although our team studies Mars, Earth is a planet, too, and we are very happy for our colleagues’ successful launch!

On Mars, it’s still winter and the topic of every planning is how to maximize the science we can do given the increased power needs for heating our rover at this time of the year. Curiosity is parked on top of the main ridge, nicknamed the “autobahn.” It turned out to be not as smooth as its terrestrial namesake, as you can see in the image above. To arrive at this parking position, our rover drivers decided to take a small detour down into a flatter area and back up onto the ridge for safe off-road driving. The rover’s parking position allows for beautiful views around us, laying out the land of hollows and ridges perfectly to plan our next steps and to admire Mount Sharp in the distance.

Standing tall on the ridge, we got several investigations of the ridge-forming materials into today’s plan. APXS, MAHLI, and ChemCam are all teaming up to investigate the target “El Salto.” This is a target that could get us a glimpse into what formed the central line that is running along the big ridge. If you look closely at the images there are subtle differences in color and texture, and we are all curious whether that translates to chemical differences, too.

Of course, it’s not all about chemistry. Mastcam is busy documenting a small mound, and its context with veins and the hollow surrounding it, at the target “Llullaillaco.” The target “Cementerio De Tortugas” will capture sand ripples within a trough area, there is an extension of the workspace imaging in the plan for more context of today’s observations, and finally the ridge intersection is of interest at the target “Villa Abecia.” Of course, Mastcam didn’t forget the documentation of the ChemCam target “El Salto” and the AEGIS target from the last plan. Speaking of ChemCam: It’s using its imaging capabilities to document the side of the ridge to give finer details of the sedimentary structures of the target “Llullaillaco.”

Atmospheric observations are also of highest interest at this time of the day. We continue our atmospheric monitoring by looking for dust devils as well as up toward the clouds in a joint observation with the CASSIS instrument, which is aboard the European Space Agency’s Trace Gas Orbiter. In addition, Curiosity continues to monitor wind and temperature throughout the plan, and the DAN (dynamic albedo of neutrons) instrument observes the rocks underneath the rover for their water content.

After completing the observations at the current parking location, Curiosity will be driving off the ridge again, but this time to stay within the hollow, so we can make observations of the material that forms those hollows. Let’s see if we can find any chemical differences between those materials that might explain why one is standing up tall and the other one is weathering out. If you want to get a better impression of what I am talking about when I say ridges and troughs, have a look at this recent navigation camera mosaic.

Learn more about Curiosity’s science instruments For more Curiosity blog posts, visit MSL Mission Updates Share Details Last Updated Aug 04, 2025 Related Terms Explore More 2 min read Curiosity Blog, Sols 4614-4615: Driving Along the Boxwork Article 6 days ago 3 min read Spheres in the Sand Article 6 days ago 2 min read Curiosity Blog, Sols 4611-4613: Scenic Overlook Article 7 days ago Keep Exploring Discover More Topics From NASA Mars

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