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By NASA
Credit: NASA NASA has selected Troy Sierra JV, LLC of Huntsville, Alabama, to provide engineering, research, and scientific support at the agency’s Glenn Research Center in Cleveland.
The Test Facility Operations, Maintenance, and Engineering Services III contract is a cost-plus-fixed-fee, indefinite-delivery/indefinite-quantity contract with a maximum potential value of approximately $388.3 million. The performance period begins Jan. 1, 2026, with a three-year base period followed by a two-year option, and a potential six-month extension through June 2031.
This contract will provide and manage the engineering, technical, manufacturing, development, operations, maintenance, inspection, and certification support services needed to conduct aerospace testing in NASA Glenn’s facilities and laboratories.
For information about NASA and other agency programs, visit:
https://www.nasa.gov
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Tiernan Doyle
Headquarters, Washington
202-358-1600
tiernan.doyle@nasa.gov
Jan Wittry
Glenn Research Center, Cleveland
216-433-5466
jan.m.wittry-1@nasa.gov
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Last Updated Sep 12, 2025 LocationNASA Headquarters Related Terms
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By NASA
A view inside the sandbox portion of the Crew Health and Performance Analog, where research volunteers participate in simulated walks on the surface of Mars. Credit: NASA Four research volunteers will soon participate in NASA’s year-long simulation of a Mars mission inside a habitat at the agency’s Johnson Space Center in Houston. This mission will provide NASA with foundational data to inform human exploration of the Moon, Mars, and beyond.
Ross Elder, Ellen Ellis, Matthew Montgomery, and James Spicer enter into the 1,700-square-foot Mars Dune Alpha habitat on Sunday, Oct. 19, to begin their mission. The team will live and work like astronauts for 378 days, concluding their mission on Oct. 31, 2026. Emily Phillips and Laura Marie serve as the mission’s alternate crew members.
Through a series of Earth-based missions called CHAPEA (Crew Health and Performance Exploration Analog), carried out in the 3D-printed habitat, NASA aims to evaluate certain human health and performance factors ahead of future Mars missions. The crew will undergo realistic resource limitations, equipment failures, communication delays, isolation and confinement, and other stressors, along with simulated high-tempo extravehicular activities. These scenarios allow NASA to make informed trades between risks and interventions for long-duration exploration missions.
“As NASA gears up for crewed Artemis missions, CHAPEA and other ground analogs are helping to determine which capabilities could best support future crews in overcoming the human health and performance challenges of living and operating beyond Earth’s resources – all before we send humans to Mars,” said Sara Whiting, project scientist with NASA’s Human Research Program at NASA Johnson.
Crew members will carry out scientific research and operational tasks, including simulated Mars walks, growing a vegetable garden, robotic operations, and more. Technologies specifically designed for Mars and deep space exploration will also be tested, including a potable water dispenser and diagnostic medical equipment.
“The simulation will allow us to collect cognitive and physical performance data to give us more insight into the potential impacts of the resource restrictions and long-duration missions to Mars on crew health and performance,” said Grace Douglas, CHAPEA principal investigator. “Ultimately, this information will help NASA make informed decisions to design and plan for a successful human mission to Mars.”
This mission, facilitated by NASA’s Human Research Program, is the second one-year Mars surface simulation conducted through CHAPEA. The first mission concluded on July 6, 2024.
The Human Research Program pursues methods and technologies to support safe, productive human space travel. Through applied research conducted in laboratories, simulations, and aboard the International Space Station, the program investigates the effects spaceflight has on human bodies and behaviors to keep astronauts healthy and mission-ready.
Primary Crew
Ross Elder, Commander
Ross Elder, from Williamstown, West Virginia, is a major and experimental test pilot in the United States Air Force. At the time of his selection, he served as the director of operations of the 461st Flight Test Squadron. He has piloted over 35 military aircraft and accumulated more than 1,800 flying hours, including 200 combat hours, primarily in the F-35, F-15E/EX, F-16, and A-10C. His flight test experience focuses on envelope expansion, crewed-uncrewed teaming, artificial intelligence, autonomy, mission systems, and weapons modernization.
Elder earned a Bachelor of Science in astronautical engineering from the U.S. Air Force Academy in Colorado Springs, Colorado, and commissioned as an Air Force officer upon graduation. He earned a Master of Science in mechanical engineering from the University of Colorado in Colorado Springs and a master’s degree in flight test engineering from the U.S. Air Force Test Pilot School at Edwards Air Force Base in California.
Ellen Ellis, Medical Officer
Ellen Ellis, from North Kingstown, Rhode Island, is a colonel and an acquisitions officer in the United States Space Force. She currently serves as a senior materiel leader in the National Reconnaissance Office (NRO) Communications Systems Directorate. She is responsible for fielding commercial cloud and traditional information technology hosting solutions and building modernized data centers for the NRO. She previously served as an Intercontinental Ballistic Missile operations officer and GPS satellite engineer, and she also developed geospatial intelligence payloads and ground processing systems.
She earned a Bachelor of Science in aerospace engineering at Syracuse University in New York and holds four master’s degrees, including a Master of Science in systems engineering from the Naval Postgraduate School in California, and a Master of Science in emergency and disaster management from Georgetown University in Washington.
Matthew Montgomery, Science Officer
Matthew Montgomery, from Los Angeles, is a hardware engineering design consultant who works with technology startup companies to develop, commercialize, and scale their products. His focus areas include LED lighting, robotics, controlled environment agriculture, and embedded control systems.
Montgomery earned a Bachelor of Science and a Master of Science in electrical engineering from the University of Central Florida. He is also a founder and co-owner of Floating Lava Studios, a film production company based in Los Angeles.
James Spicer, Flight Engineer
James Spicer is a technical director in the aerospace and defense industry. His experience includes building radio and optical satellite communications networks; space data relay networks for human spaceflight; position, navigation, and timing research; and hands-on spacecraft design, integration, and tests.
Spicer earned a Bachelor of Science and Master of Science in aeronautics and astronautics, and holds a Notation in Science Communication from Stanford University in California. He also holds commercial pilot and glider pilot licenses.
Alternate Crew
Emily Phillips
Emily Phillips, from Waynesburg, Pennsylvania, is a captain and pilot in the United States Marine Corps. She currently serves as a forward air controller and air officer attached to an infantry battalion stationed at the Marine Corps Air Ground Combat Center in Twentynine Palms, California.
Phillips earned a Bachelor of Science in computer science from the U.S. Naval Academy in Annapolis and commissioned as a Marine Corps officer upon graduation. She attended flight school, earning her Naval Aviator wings and qualifying as an F/A-18C Hornet pilot. Phillips has completed multiple deployments to Europe and Southeast Asia.
Laura Marie
Born in the United Kingdom, Laura Marie immigrated to the U.S. in 2016. She is a commercial airline pilot specializing in flight safety, currently operating passenger flights in Washington.
Marie began her aviation career in 2019 and has amassed over 2,800 flight hours. She holds a Bachelor of Arts in philosophy and a Master of Science in aeronautics from Liberty University in Lynchburg, Virginia. In addition to her Airline Transport Pilot License, she also possesses flight instructor and advanced ground instructor licenses. Outside the flight deck, Marie dedicates her time to mentoring and supporting aspiring pilots as they navigate their careers.
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4 min read NASA Glenn Tests Mini-X-Ray Technology to Advance Space Health Care
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Researchers Kelly Gilkey, Cy Peverill, Daniel Phan, Chase Haddix, and Ariel Tokarz test portable, handheld X-ray systems for use during future long-duration space missions at NASA’s Glenn Research Center in Cleveland on Friday, March 21, 2025. Credit: NASA/Sara Lowthian-Hanna As NASA plans future human exploration missions to the Moon, Mars, and beyond, new and unique challenges emerge — like communication delays and limited return-to-Earth options — so enhanced medical care capabilities are critical. Crews will need non-invasive imaging technology to diagnose medical conditions, like broken bones or dental injuries.
Scientists at NASA’s Glenn Research Center in Cleveland are testing portable, handheld X-ray systems for use during future extended space missions. Having portable X-ray capabilities aboard spacecraft would allow astronauts to immediately assess and treat potential injuries or identify equipment issues without having to disassemble the gear.
“Technological innovations like that of the mini-X-ray will help keep our astronauts healthy as we endeavor farther into space than ever before,” said acting NASA Administrator Sean Duffy. “Future missions to the Moon and Mars will be safer due to the research of our scientists at NASA Glenn.”
NASA reviewed more than 200 commercial systems — analyzing size, weight, image quality, ease-of-use, cost, and safety — and selected three systems for further testing: MinXray, Remedi, and Fujifilm.
“We’re working to provide evidence on why a mini-X-ray system should be included in future space exploration,” said Dr. Chase Haddix, a senior biomedical engineering research contractor working for Universities Space Research Association at NASA Glenn. “These X-rays could be used to detect both clinical and non-clinical diagnostics, meaning they can check an astronaut’s body or identify the location of a tear in an astronaut suit.”
Researchers capture X-ray images of a shape memory alloy rover tire at NASA’s Glenn Research Center in Cleveland on Friday, March 21, 2025. Credit: NASA/Sara Lowthian-Hanna NASA Glenn is collaborating with other centers, including NASA’s Johnson Space Center in Houston and NASA’s Langley Research Center in Hampton, Virginia, and radiography experts at University Hospitals and Cuyahoga Community College in Cleveland.
“We’re fortunate to have enthusiastic medical and radiography experts right here in our community,” said Dr. Cy Peverill, project task lead at NASA Glenn. “Their knowledge and experience are invaluable as we work to test medical technologies that could significantly improve management of astronaut health on future missions to the Moon or Mars.”
Cuyahoga Community College contributed anatomical phantoms, which are lifelike models of the human body, in its radiography laboratory on the Western Campus and dental hygiene clinical facility at the Metropolitan Campus. Faculty and students consulted with NASA researchers on essential imaging principles, including patient positioning, image acquisition, and image quality.
University Hospitals is partnering with NASA Glenn on a medical study with real patients to compare the performance of the X-ray systems against hospital-grade equipment, focusing on usability, image clarity, and diagnostic accuracy.
“Astronauts live and work in small quarters, much smaller spaces than in a hospital,” Haddix said. “The system must be easy to use since astronauts may not be experienced in radiography. The data from these tests will guide the selection of the most suitable system for future missions.”
Researchers capture X-ray images of an astronaut spacesuit at NASA’s Glenn Research Center in Cleveland on Friday, March 21, 2025. Credit: NASA/Sara Lowthian-Hanna Using portable X-rays to improve health care in inaccessible areas is not new, with systems deployed to diagnose medical issues in places such as base camps in Nepal and remote villages in South Africa. NASA researchers theorize that if these systems are successful in high elevations and extreme temperatures on Earth, perhaps they are durable enough for space missions.
Glenn researchers will continue to collect data from all collaborators, including from an X-ray system sourced by SpaceX that launched in April during the Fram2 mission. The crew captured the first human X-ray images in space during their four-day mission to low Earth orbit. NASA plans to select a device near the end of 2025 and will test the chosen system aboard the International Space Station in 2026 or early 2027.
The Mars Campaign Office at NASA Headquarters in Washington and the agency’s Human Research Program at NASA Johnson fund this work as both organizations focus on pursuing technologies and methods to support safe, productive human space travel.
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Preparations for Next Moonwalk Simulations Underway (and Underwater)
Dwarf planet Ceres is shown in these enhanced-color renderings that use images from NASA’s Dawn mission. New thermal and chemicals models that rely on the mission’s data indicate Ceres may have long ago had conditions suitable for life.NASA/JPL-Caltech/UCLA/MPS/DLR/IDA The dwarf planet is cold now, but new research paints a picture of Ceres hosting a deep, long-lived energy source that may have maintained habitable conditions in the past.
New NASA research has found that Ceres may have had a lasting source of chemical energy: the right types of molecules needed to fuel some microbial metabolisms. Although there is no evidence that microorganisms ever existed on Ceres, the finding supports theories that this intriguing dwarf planet, which is the largest body in the main asteroid belt between Mars and Jupiter, may have once had conditions suitable to support single-celled lifeforms.
Science data from NASA’s Dawn mission, which ended in 2018, previously showed that the bright, reflective regions on Ceres’ surface are mostly made of salts left over from liquid that percolated up from underground. Later analysis in 2020 found that the source of this liquid was an enormous reservoir of brine, or salty water, below the surface. In other research, the Dawn mission also revealed evidence that Ceres has organic material in the form of carbon molecules — essential, though not sufficient on its own, to support microbial cells.
The presence of water and carbon molecules are two critical pieces of the habitability puzzle on Ceres. The new findings offer the third: a long-lasting source of chemical energy in Ceres’ ancient past that could have made it possible for microorganisms to survive. This result does not mean that Ceres had life, but rather, that there likely was “food” available should life have ever arisen on Ceres.
This illustration depicts the interior of dwarf planet Ceres, including the transfer of water and gases from the rocky core to a reservoir of salty water. Carbon dioxide and methane are among the molecules carrying chemical energy beneath Ceres’ surface.NASA/JPL-Caltech In the study, published in Science Advances on Aug. 20, the authors built thermal and chemical models mimicking the temperature and composition of Ceres’ interior over time. They found that 2.5 billion years or so ago, Ceres’ subsurface ocean may have had a steady supply of hot water containing dissolved gases traveling up from metamorphosed rocks in the rocky core. The heat came from the decay of radioactive elements within the dwarf planet’s rocky interior that occurred when Ceres was young — an internal process thought to be common in our solar system.
“On Earth, when hot water from deep underground mixes with the ocean, the result is often a buffet for microbes — a feast of chemical energy. So it could have big implications if we could determine whether Ceres’ ocean had an influx of hydrothermal fluid in the past,” said Sam Courville, lead author of the study. Now based at Arizona State University in Tempe, he led the research while working as an intern at NASA’s Jet Propulsion Laboratory in Southern California, which also managed the Dawn mission.
Catching Chill
The Ceres we know today is unlikely to be habitable. It is cooler, with more ice and less water than in the past. There is currently insufficient heat from radioactive decay within Ceres to keep the water from freezing, and what liquid remains has become a concentrated brine.
The period when Ceres would most likely have been habitable was between a half-billion and 2 billion years after it formed (or about 2.5 billion to 4 billion years ago), when its rocky core reached its peak temperature. That’s when warm fluids would have been introduced into Ceres’ underground water.
The dwarf planet also doesn’t have the benefit of present-day internal heating generated by the push and pull of orbiting a large planet, like Saturn’s moon Enceladus and Jupiter’s moon Europa do. So Ceres’ greatest potential for habitability-fueling energy was in the past.
This result has implications for water-rich objects throughout the outer solar system, too. Many of the other icy moons and dwarf planets that are of similar size to Ceres (about 585 miles, or 940 kilometers, in diameter) and don’t have significant internal heating from the gravitational pull of planets could have also had a period of habitability in their past.
More About Dawn
A division of Caltech in Pasadena, JPL managed Dawn’s mission for NASA’s Science Mission Directorate in Washington. Dawn was a project of the directorate’s Discovery Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama. JPL was responsible for overall Dawn mission science. Northrop Grumman in Dulles, Virginia, designed and built the spacecraft. The German Aerospace Center, Max Planck Institute for Solar System Research, Italian Space Agency and Italian National Astrophysical Institute were international partners on the mission team.
For a complete list of mission participants, visit:
https://solarsystem.nasa.gov/missions/dawn/overview/
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Gretchen McCartney
Jet Propulsion Laboratory, Pasadena, Calif.
818-287-4115
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Karen Fox / Molly Wasser
NASA Headquarters, Washington
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Last Updated Aug 20, 2025 Related Terms
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Explore This Section Science Science Activation Sun at the Center: Teacher… Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 3 min read
Sun at the Center: Teacher Ambassadors Bring Heliophysics to Classrooms Nationwide
For the fourth year in a row, the American Association of Physics Teachers, a collaborator on the NASA Heliophysics Education Activation Team (HEAT), selected eight new educators to serve as ambassadors for heliophysics education. Meeting in Boulder, CO, from July 14-17, 2025, these teachers met to work through AAPT’s lessons that bring physics content to life in the context of NASA heliophysics missions and the Framework for Heliophysics Education.
The Ambassador program began in 2022 as an effort to identify highly-motivated secondary and tertiary educators who could encourage other educators to integrate NASA content into their teaching. The impact is clear – a handful of Ambassadors in the past few years have joined the program directly as a result of previous educators.
New Jersey high school physics and astronomy teacher Erin Bontempo first learned about the program at the spring meeting of the National Science Teaching Association (NSTA). She attended a workshop led by Hava Turkakin and Francesca Viale, 2023 and 2024 Ambassadors and community college faculty. In a 60-minute interactive session, Hava and Francesca shared brief snapshots of four of AAPT’s lessons, connecting heliophysics to topics traditionally taught in core science courses, such as motion, light, and magnetism.
Erin was intrigued by the lessons she saw: “When I began teaching astronomy eight years ago, I knew little about space. Ever since, I have been an avid student, constantly reading, researching, and in awe of the current NASA missions. I often look for courses to take to further my knowledge, and I feel like this is a perfect fit. When I attended the NSTA conference session on HEAT, it just clicked. The lessons that they brought using real data are the kind of exposure students need.”
Ultimately, Erin was invited to be an Ambassador herself, along with seven other educators, to take part in the summit experience in Boulder. In addition to learning about heliophysics with the AAPT leadership team, the group visited the National Space Weather Prediction Center to hear first-hand how NASA, NOAA, and various federal and international agencies work to understand and respond to our changing Sun.
Since the program began, 32 Ambassadors have been identified and participated in the multi-day professional learning experience, followed by a year of leadership and outreach to other educators. Beyond their own classrooms, they have reached educators across 36 local, state, and national events, holding extended workshops with nearly 500 other teachers.
In addition to AAPT’s lessons, the AAPT/NASA HEAT Resources webpage also provides the names and states for all ambassadors as well as the schedule and topics for the upcoming ‘Physics in an Astronomy Context’ series of free online mini-workshops being planned for the 2025 Fall semester.
NASA HEAT is 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/about-science-activation/
Linh Ho and Samuel S. Macintire analyze the motion of a coronal mass ejection from the Sun. Share
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Last Updated Aug 19, 2025 Editor NASA Science Editorial Team Related Terms
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