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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
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)
The Lunar Environment Structural Test Rig simulates the intense cold of the lunar night, ranging from 40 Kelvin (K) to 125 K while maintaining a vacuum environment. This creates a tool by which scientists and engineers can test materials, electronics, and flight hardware for future Moon and Mars missions, characterizing their behaviors at these temperatures while also validating their ability to meet design requirements.
Cryogenic engineer Adam Rice tests the Lunar Environment Structural Test Rig to simulate the thermal-vacuum conditions of the lunar night on Thursday, May 22, 2025.NASA/Jef Janis Facility Overview
The Lunar Environment Structural Test Rig (LESTR) approaches the problem of creating a simulated lunar environment by departing from typical fluid immersion or jacketed-and-chilled chamber systems. It does this by using a cryocooler to reject heat and bring the test section to any point desired by the test engineer, as low as 40 K or as high as 125 K in a vacuum environment. By combining high vacuum and cryogenic temperatures, LESTR enables safe, accurate, and cost-effective testing of materials and hardware destined for the Moon and beyond. Its modular setup supports a wide range of components — from spacesuits to rover wheels to electronics — while laying the foundation for future Moon and Mars mission technologies.
Quick Facts
LESTR is a cryogenic mechanical test system built up within a conventional load frame with the goal of providing a tool to simulate the thermal-vacuum conditions of the lunar night to engineers tasked with creating the materials, tools, and machinery to succeed in NASA’s missions.
LESTR replicates extreme lunar night environments — including temperatures as low as 40 K and high vacuum (<5×10⁻⁷ Torr) — enabling true-to-space testing without liquid cryogens. Unlike traditional “wet” methods, LESTR uses a cryocooler and vacuum system to create an environment accurate to the lunar surface. From rover wheels to spacesuits to electronics, LESTR supports static and dynamic testing across a wide range of Moon and Mars mission hardware. With scalable architecture and precision thermal control, LESTR lays critical groundwork for advancing the technologies of NASA’s Artemis missions and beyond. Capabilities
Specifications
Temperature Range: 40 K to 125 K Load Capacity: ~10 kN Vacuum Level: <5×10⁻⁷ Torr Test Volume (Cold Box Dimensions): 7.5 by 9.5 by 11.5 inches Maximum Cycle Rate: 100 Hz Time to Vacuum:10⁻⁵ Torr in less than one hour 10⁻⁶ Torr in four hours Features
Dry cryogenic testing (no fluid cryogen immersion) “Dial-a-temperature” control for precise thermal conditions Integrated optical extensometer for strain imaging Digital image correlation and electrical feedthroughs support a variety of data collection methods Native support for high-duration cyclic testing Applications
Cryogenic Lifecycle Testing: fatigue, fracture, and durability assessments Low-Frequency Vibration Testing: electronics qualification for mobility systems Static Load Testing: material behavior characterization in lunar-like environments Suspension and Drivetrain Testing: shock absorbers, wheels, springs, and textiles Textiles Testing: evaluation of spacesuits and habitat fabrics Dynamic Load Testing: up to 10 kN linear capacity, 60 mm stroke Contact
Cryogenic and Mechanical Evaluation Lab Manager: Andrew Ring
216-433-9623
Andrew.J.Ring@nasa.gov
LESTR Technical Lead: Ariel Dimston
216-433-2893
Ariel.E.Dimston@nasa.gov
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NASA’s Glenn Research Center in Cleveland provides ground test facilities to industry, government, and academia. If you are considering testing in one of our facilities or would like further information about a specific facility or capability, please let us know.
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The Lunar Environment Structural Test Rig simulates the intense cold of the lunar night on Friday, June 6, 2025.NASA/Steven Logan The Lunar Environment Structural Test Rig uses a cryocooler to reject heat and bring the test section as low as 40 Kelvin in a vacuum environment on Thursday, May 22, 2025.NASA/Jef Janis Keep Exploring Discover More Topics From NASA
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By NASA
NASA has demonstrated a breakthrough in 3D-printable high-temperature materials that could lead to stronger, more durable parts for airplanes and spacecraft. Credit: NASA/Jordan Salkin NASA’s Inventions and Contributions Board (ICB) has awarded Commercial Invention of the Year to NASA Glenn Research Center’s GRX-810: A 3D Printable Alloy Designed for Extreme Environments.
NASA Alloy GRX–810, an oxide dispersion strengthened (ODS) alloy, can endure temperatures over 2,000 degrees Fahrenheit. It is more malleable and can survive more than 1,000 times longer than existing state-of-the-art alloys. This new alloy can be used to build aerospace parts for high-temperature applications, like those inside aircraft and rocket engines, because ODS alloys can withstand harsher conditions before reaching their breaking point.
The NASA Glenn team of inventors includes Dr. Timothy Smith (co-lead), Dr. Christopher Kantzos (co-lead), Robert Carter, and Dr. Michael Kulis.
Four American companies have been granted co-exclusive licenses to produce and market GRX-810 material. All four have replicated NASA Glenn’s patented process and are selling fully coated materials. This benefits the United States economy as a return on investment of taxpayer dollars.
For more information on this technology, visit 3D Printed Alloy and New Material Built to Withstand Extreme Conditions.
The NASA insignia is 3D printed using the GRX-810 superalloy.
Video Credit: NASA/Jordan Salkin
Additionally, the ICB selected NASA Glenn’s High-Rate Delay Tolerant Networking (HDTN) project for an honorable mention in the Software of the Year category. HDTN is a protocol suite that extends terrestrial internet principles to the space environment, creating a high-speed data transfer path for spacecraft and different communication systems. It is an optimized version of the DTN standard for high-rate radio frequency and optical links.
The ICB reviews and recommends awards for significant scientific and technical contributions to the agency’s aeronautical and space activities. These awards recognize technologies that not only advance NASA’s mission but also benefit the public through commercialization.
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NASA Glenn Research Center High School Engineering Institute participants, left to right: Evan Ricchetti, Edan Liahovetsky, and Doris Chen, prepare to add weights to their rover to test the effectiveness of their wheel grouser designs on Friday, July 18, 2025. Credit: NASA/Jef Janis This summer, NASA’s Glenn Research Center in Cleveland hosted the NASA Glenn High School Engineering Institute, a free, work-based learning experience designed to prepare rising high school juniors and seniors for careers in the aerospace workforce.
“The institute immerses students in NASA’s work, providing essential career readiness tools for future science, technology, engineering, and mathematics-focused academic and professional pursuits,” said Jerry Voltz of NASA Glenn’s Office of STEM Engagement.
Throughout the five-day sessions (offered three separate weeks in July), students used authentic NASA mission content and collaborated with Glenn’s technical experts. They gained a deeper understanding of the engineering design process, developed practical engineering solutions to real-world challenges, and tested prototypes to address key mission areas such as:
Acoustic dampening: How can we reduce noise pollution from jet engines? Power management and distribution: How can we develop a smart power system for future space stations? Simulated lunar operations: Can we invent tires that don’t use air? NASA Glenn Research Center High School Engineering Institute participants, left to right: Adriana Pudloski, Anadavel Sakthi, Aditya Rohatgi, and Alexa Apshago, make modifications to the control system program for their rover on Friday, July 18, 2025. Credit: NASA/Jef Janis Voltz said he hoped students left the program with three key takeaways: a deeper curiosity and excitement for STEM careers, firsthand insight into how cutting-edge technology developed in Cleveland contributes to NASA’s most prominent missions, and most importantly, a feeling of empowerment gained from engaging with some of NASA’s brightest minds in the field.
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