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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A collage of artist concepts highlighting the novel approaches proposed by the 2025 NIAC awardees for possible future missions. Through the NASA Innovative Advanced Concepts (NIAC) program, NASA nurtures visionary yet credible concepts that could one day “change the possible” in aerospace, while engaging America’s innovators and entrepreneurs as partners in the journey.
These concepts span various disciplines and aim to advance capabilities such as finding resources on distant planets, making space travel safer and more efficient, and even providing benefits to life here on Earth. The NIAC portfolio of studies also includes several solutions and technologies that could help NASA achieve a future human presence on Mars. One concept at a time, NIAC is taking technology concepts from science fiction to reality.
Breathing beyond Earth
Astronauts have a limited supply of water and oxygen in space, which makes producing and maintaining these resources extremely valuable. One NIAC study investigates a system to separate oxygen and hydrogen gas bubbles in microgravity from water, without touching the water directly. Researchers found the concept can handle power changes, requires less clean water, works in a wide range of temperatures, and is more resistant to bacteria than existing oxygen generation systems for short-term crewed missions. These new developments could make it a great fit for a long trip to Mars.
Newly selected for another phase of study, the team wants to understand how the system will perform over long periods in space and consider ways to simplify the system’s build. They plan to test a large version of the system in microgravity in hopes of proving how it may be a game changer for future missions.
Detoxifying water on Mars
Unlike water on Earth, Mars’ water is contaminated with toxic chemical compounds such as perchlorates and chlorates. These contaminants threaten human health even at tiny concentrations and can easily corrode hardware and equipment. Finding a way to remove contaminates from water will benefit future human explorers and prepare them to live on Mars long term.
Researchers are creating a regenerative perchlorate reduction system that uses perchlorate reduction pathways from naturally occurring bacteria. Perchlorate is a compound comprised of oxygen and chlorine that is typically used for rocket propellant. These perchlorate reduction pathways can be engineered into a type of bacterium that is known for its remarkable resilience, even in the harsh conditions of space. The system would use these enzymes to cause the biochemical reduction of chlorate and perchlorate to chloride and oxygen, eliminating these toxic molecules from the water. With the technology to detoxify water on Mars, humans could thrive on the Red Planet with an abundant water supply.
Tackling deep space radiation exposure
Mitochondria are the small structures within cells often called the “powerhouse,” but what if they could also power human health in space? Chronic radiation exposure is among the many threats to long-term human stays in space, including time spent traveling to and from Mars. One NIAC study explores transplanting new, undamaged mitochondria to radiation-damaged cells and investigates cell responses to relevant radiation levels to simulate deep-space travel. Researchers propose using in vitro human cell models – complex 3D structures grown in a lab to mimic aspects of organs – to demonstrate how targeted mitochondria replacement therapy could regenerate cellular function after acute and long-term radiation exposure.
While still in early stages, the research could help significantly reduce radiation risks for crewed missions to Mars and beyond. Here on Earth, the technology could also help treat a wide variety of age-related degenerative diseases associated with mitochondrial dysfunction.
Suiting up for Mars
Mars is no “walk in the park,” which is why specialized spacesuits are essential for future missions. Engineers propose using a digital template to generate custom, cost-effective, high-performance spacesuits. This spacesuit concept uses something called digital thread technology to protect crewmembers from the extreme Martian environment, while providing the mobility to perform daily Mars exploration endeavors, including scientific excursions.
This now completed NIAC study focused on mapping key spacesuit components and current manufacturing technologies to digital components, identifying technology gaps, benchmarking required capabilities, and developing a conceptional digital thread model for future spacesuit development and operational support. This research could help astronauts suit up for Mars and beyond in a way like never before.
Redefining what’s possible
From studying Mars to researching black holes and monitoring the atmosphere of Venus, NIAC concepts help us push the boundaries of exploration. By collaborating with innovators and entrepreneurs, NASA advances concepts for future and current missions while energizing the space economy.
If you have a visionary idea to share, you can apply to NIAC’s 2026 Phase I solicitation now until July 15.
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4 min read NASA Tech to Use Moonlight to Enhance Measurements from Space
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Last Updated Jun 23, 2025 EditorLoura Hall Related Terms
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By NASA
4 Min Read NASA Tech to Use Moonlight to Enhance Measurements from Space
NASA's Arcstone instrument will be the first mission exclusively dedicated to measuring moonlight, or lunar reflectance, from space as a way to calibrate and improve science data collected by Earth-viewing, in-orbit instruments. Credits: Blue Canyon Technologies NASA will soon launch a one-of-a-kind instrument, called Arcstone, to improve the quality of data from Earth-viewing sensors in orbit. In this technology demonstration, the mission will measure sunlight reflected from the Moon— a technique called lunar calibration. Such measurements of lunar spectral reflectance can ultimately be used to set a high-accuracy, universal standard for use across the international scientific community and commercial space industry.
To ensure satellite and airborne sensors are working properly, researchers calibrate them by comparing the sensor measurements against a known standard measurement. Arcstone will be the first mission exclusively dedicated to measuring lunar reflectance from space as a way to calibrate and improve science data collected by Earth-viewing, in-orbit instruments.
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This visualization demonstrates how Arcstone will operate while in orbit measuring lunar reflectance to establish a new calibration standard for future Earth-observing remote sensors. Arcstone’s satellite platform was manufactured by Blue Canyon Technologies. NASA/Tim Marvel/Blue Canyon Technologies “One of the most challenging tasks in remote sensing from space is achieving required instrument calibration accuracy on-orbit,” said Constantine Lukashin, principal investigator for the Arcstone mission and physical scientist at NASA’s Langley Research Center in Hampton, Virginia. “The Moon is an excellent and available calibration source beyond Earth’s atmosphere. The light reflected off the Moon is extremely stable and measurable at a very high level of detail. Arcstone’s goal is to improve the accuracy of lunar calibration to increase the quality of spaceborne remote sensing data products for generations to come.”
Across its planned six-month mission, Arcstone will use a spectrometer — a scientific instrument that measures and analyzes light by separating it into its constituent wavelengths, or spectrum — to measure lunar spectral reflectance. Expected to launch in late June as a rideshare on a small CubeSat, Arcstone will begin collecting data, a milestone called first light, approximately three weeks after reaching orbit.
“The mission demonstrates a new, more cost-efficient instrument design, hardware performance, operations, and data processing to achieve high-accuracy reference measurements of lunar spectral reflectance,” said Lukashin.
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Measuring the lunar reflectance at the necessary ranges of lunar phase angles and librations is required to build a highly accurate lunar reference. A satellite platform in space would provide this required sampling. Arcstone will use a spectrometer to demonstrate the ability to observe and establish a data record of lunar spectral reflectance throughout its librations and phases for other instruments to use the Moon to calibrate sensors.NASA/Scientific Visualization Studio Measurements of lunar reflectance taken from Earth’s surface can be affected by interference from the atmosphere, which can complicate calibration efforts. Researchers already use the Sun and Moon to calibrate spaceborne instruments, but not at a level of precision and agreement that could come from having a universal standard.
Lukashin and colleagues want to increase calibration accuracy by getting above the atmosphere to measure reflected solar wavelengths in a way that provides a stable and universal calibration source. Another recent NASA mission, called the Airborne Lunar Spectral Irradiance mission also used sensors mounted on high-altitude aircraft to improve lunar irradiance measurements from planes.
There is not an internationally accepted standard (SI-traceable) calibration for lunar reflectance from space across the scientific community or the commercial space industry.
“Dedicated radiometric characterization measurements of the Moon have never been acquired from a space-based platform,” said Thomas Stone, co-investigator for Arcstone and scientist at the U.S. Geological Survey (USGS). “A high-accuracy, SI-traceable lunar calibration system enables several important capabilities for space-based Earth observing missions such as calibrating datasets against a common reference – the Moon, calibrating sensors on-orbit, and the ability to bridge gaps in past datasets.”
The Arcstone spacecraft with solar panels installed as it is tested before being integrated for launch. Blue Canyon Technologies If the initial Arcstone technology demonstration is successful, a longer Arcstone mission could allow scientists to make the Moon the preferred reference standard for many other satellites. The new calibration standard could also be applied retroactively to previous Earth data records to improve their accuracy or fill in data gaps for data fields. It could also improve high-precision sensor performance on-orbit, which is critical for calibrating instruments that may be sensitive to degradation or hardware breakdown over time in space.
“Earth observations from space play a critical role in monitoring the environmental health of our planet,” said Stone. “Lunar calibration is a robust and cost-effective way to achieve high accuracy and inter-consistency of Earth observation datasets, enabling more accurate assessments of Earth’s current state and more reliable predictions of future trends.”
The Arcstone technology demonstration project is funded by NASA’s Earth Science Technology Office’s In-space Validation of Earth Science Technologies. Arcstone is led by NASA’s Langley Research Center in partnership with Colorado University Boulder’s Laboratory for Atmospheric and Space Physics, USGS, NASA Goddard Space Flight Center in Greenbelt, Maryland, Resonon Inc., Blue Canyon Technologies, and Quartus Engineering.
For more information on NASA’s Arcstone mission visit:
https://science.larc.nasa.gov/arcstone/about/
About the Author
Charles G. Hatfield
Science Public Affairs Officer, NASA Langley Research Center
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Last Updated Jun 20, 2025 LocationNASA Langley Research Center Related Terms
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3 min read NASA Measures Moonlight to Improve Earth Observations
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA/Jacob Shaw A NASA system designed to measure temperature and strain on high-speed vehicles is set to make its first flights at hypersonic speeds – greater than Mach 5, or five times the speed of sound – when mounted to two research rockets launching this summer.
Technicians in the Environmental Laboratory at NASA’s Armstrong Flight Research Center in Edwards, California, used machines called shakers to perform vibration tests on the technology, known as a Fiber Optic Sensing System (FOSS), on March 26. The tests confirmed the FOSS could operate while withstanding the shaking forces of a rocket launch. Initial laboratory and flight tests in 2024 went well, leading to the recently tested system’s use on the U.S. Department of Defense coordinated research rockets to measure critical temperature safety data.
Hypersonic sensing systems are crucial for advancing hypersonics, a potentially game-changing field in aeronautics. Capitalizing on decades of research, NASA is working to address critical challenges in hypersonic engine technology through its Advanced Air Vehicles Program.
Using FOSS, NASA will gather data on the strain placed on vehicles during flight, as well as temperature information, which helps engineers understand the condition of a rocket or aircraft. The FOSS system collects data using a fiber about the thickness of a human hair that collects data along its length, replacing heavier and bulkier traditional wire harnesses and sensors.
Jonathan Lopez and Allen Parker confer on the hypersonic Fiber Optic Sensor System at NASA’s Armstrong Flight Research Center in Edwards, California, on February 13, 2025. The system measures strain and temperature, critical safety data for hypersonic vehicles that travel five time the speed of sound.NASA/Steve Freeman “There is no reliable technology with multiple sensors on a single fiber in the hypersonic environment,” said Patrick Chan, FOSS project manager at Armstrong. “The FOSS system is a paradigm shift for hypersonic research, because it can measure temperature and strain.”
For decades, NASA Armstrong worked to develop and improve the system, leading to hypersonic FOSS, which originated in 2020. Craig Stephens, the Hypersonic Technology Project associate project manager at NASA Armstrong, anticipated a need for systems and sensors to measure temperature and strain on hypersonic vehicles.
“I challenged the FOSS team to develop a durable data collection system that had reduced size, weight, and power requirements,” Stephens said. “If we obtain multiple readings from one FOSS fiber, that means we are reducing the number of wires in a vehicle, effectively saving weight and space.”
The research work has continually made the system smaller and lighter. While a space-rated FOSS used in 2022 to collect temperature data during a NASA mission in low Earth orbit was roughly the size of a toaster, the hypersonic FOSS unit is about the size of two sticks of butter.
Jonathan Lopez and Nathan Rick prepare the hypersonic Fiber Optic Sensing System for vibration tests in the Environmental Laboratory at NASA’s Armstrong Flight Research Center in Edwards, California. Testing on a machine called a shaker proved that the system could withstand the severe vibration it will endure in hypersonic flight, or travel at five times the speed of sound.NASA/Jim Ross Successful Partnerships
To help advance hypersonic FOSS to test flights, NASA Armstrong Technology Transfer Office lead Ben Tomlinson orchestrated a partnership. NASA, the U.S. Air Force Test Pilot School in Edwards, California, and the U.S. Air Force’s 586th Flight Test Squadron at Holloman Air Force Base in New Mexico, agreed to a six-flight series in 2024.
The test pilot school selected an experiment comparing FOSS and traditional sensors, looking at the data the different systems produced.
The hypersonic FOSS was integrated into a beam fixed onto one end of a pod. It had weight on the other end of the beam so that it could move as the aircraft maneuvered into position for the tests. The pod fit under a T-38 aircraft that collected strain data as the aircraft flew.
“The successful T-38 flights increased the FOSS technology readiness,” Tomlinson said. “However, a test at hypersonic speed will make FOSS more attractive for a United States business to commercialize.”
April Torres, from left, Cryss Punteney, and Karen Estes watch as data flows from the hypersonic Fiber Optic Sensing System at NASA’s Armstrong Flight Research Center in Edwards, California. Testing on a machine called a shaker proved that the system could withstand the severe vibration it will endure in hypersonic flight, or travel at five times the speed of sound.NASA/Jim Ross New Opportunities
After the experiment with the Air Force, NASA’s hypersonic technology team looked for other opportunities to advance the miniaturized version of the system. That interest led to the upcoming research rocket tests in coordination with the Department of Defense.
“We have high confidence in the system, and we look forward to flying it in hypersonic flight and at altitude,” Chan said.
A hypersonic Fiber Optic Sensing System, developed at NASA’s Armstrong Flight Research Center in Edwards, California, is ready for a test flight on a T-38 at the U.S. Air Force 586th Flight Test Squadron at Holloman Air Force Base in New Mexico. NASA Armstrong, the flight test squadron, and the U.S. Air Force Test Pilot School in Edwards, California, partnered for the test. From left are Earl Adams, Chathu Kuruppu, Colby Ferrigno, Allen Parker, Patrick Chan, Anthony Peralta, Ben Tomlinson, Jonathan Lopez, David Brown, Lt. Col. Sean Siddiqui, Capt. Nathaniel Raquet, Master Sgt. Charles Shepard, and Greg Talbot.U.S. Air Force/Devin Lopez Share
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Last Updated Jun 18, 2025 EditorDede DiniusContactJay Levinejay.levine-1@nasa.govLocationArmstrong Flight Research Center Related Terms
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By Space Force
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Boost Treadmills cofounder Sean Whalen runs on the Boost 2. The treadmill uses air pressure to counter gravity, making running possible for people with injuries and other conditions.Credit: Boost Treadmills LLC The antigravity treadmill, which has benefits in space and on Earth, was pioneered by Robert Whalen at NASA’s Ames Research Center in Silicon Valley, California, in the 1980s and ’90s.
Whalen built a system that placed a pressurized bulb over the user’s upper body, creating downward pressure that could simulate gravity for astronauts running on a treadmill in space. With support from Ames, he prototyped a treadmill in his garage that reversed the concept, with the bubble enclosing the user from the waist down to create lift. He thought the system could help patients rehabilitate.
Years later, his son recalled the prototype in the garage and turned it into the AlterG concept. The AlterG treadmill, which uses air pressure to take weight off the user, had proven popular with professional sports teams and rehabilitation clinics, but Whalen and his friends wanted to make it affordable enough for home use, so they founded Boost Treadmills in 2017.
Now Boost, based in Palo Alto, California, has cut the price of an antigravity treadmill by almost two thirds. In 2022, the company released the Boost 2, which is quieter and more energy-efficient than its predecessor, among other improvements. The Boost 2 has roughly tripled sales to individuals, progressing on the company’s goal of moving into the home.
Offloading weight during exercise is a clear solution for patients whose injuries prevent them from walking or running at their full weight, but Boost says it can be equally valuable for people with long-term mobility impairments, such as obesity or arthritis.
Advanced through NASA, the antigravity treadmill is one of many space-inspired technologies benefitting life on Earth.
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Last Updated May 29, 2025 Related Terms
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