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The parachute of the Enhancing Parachutes by Instrumenting the Canopy test experiment deploys following an air launch from an Alta X drone on June 4, 2025, at NASA’s Armstrong Flight Research Center in Edwards, California.

NASA/Christopher LC Clark

The parachute of the Enhancing Parachutes by Instrumenting the Canopy, or EPIC, test experiment deploys following an air launch from an Alta X drone on June 4, 2025, at NASA’s Armstrong Flight Research Center in Edwards, California. NASA researchers are developing technology to make supersonic parachutes safer and more reliable for delivering instruments and payloads to Mars.

The flight tests were a first step toward filling gaps in computer models to improve supersonic parachutes. This work could also open the door to future partnerships, including with the aerospace and auto racing industries.

Image Credit: NASA/Christopher LC Clark

NASA/Christopher LC Clark

The parachute of the Enhancing Parachutes by Instrumenting the Canopy, or EPIC, test experiment deploys following an air launch from an Alta X drone on June 4, 2025, at NASA’s Armstrong Flight Research Center in Edwards, California. NASA researchers are developing technology to make supersonic parachutes safer and more reliable for delivering instruments and payloads to Mars.

The flight tests were a first step toward filling gaps in computer models to improve supersonic parachutes. This work could also open the door to future partnerships, including with the aerospace and auto racing industries.

Image Credit: NASA/Christopher LC Clark

A scanning electron microscope image of a micrometeorite impact crater in a particle of asteroid Bennu material.Credits: NASA/Zia Rahman

5 min read

NASA’s Bennu Samples Reveal Complex Origins, Dramatic Transformation

Asteroid Bennu, sampled by NASA’s OSIRIS-REx mission in 2020, is a mixture of dust that formed in our solar system, organic matter from interstellar space, and pre-solar system stardust. Its unique and varied contents were dramatically transformed over time by interactions with water and exposure to the harsh space environment.

These insights come from a trio of newly published papers based on the analysis of Bennu samples by scientists at NASA and other institutions.

Bennu is made of fragments from a larger parent asteroid destroyed by a collision in the asteroid belt, between the orbits of Mars and Jupiter. One of the papers, co-led by Jessica Barnes at the University of Arizona, Tucson, and Ann Nguyen of NASA’s Johnson Space Center in Houston and published in the journal Nature Astronomy, suggests that Bennu’s ancestor was made up of material that had diverse origins—near the Sun, far from the Sun, and even beyond our solar system.

The analyses show that some of the materials in the parent asteroid, despite very low odds, escaped various chemical processes driven by heat and water and even survived the extremely energetic collision that broke it apart and formed Bennu.

“We traced the origins of these initial materials accumulated by Bennu’s ancestor,” said Nguyen. “We found stardust grains with compositions that predate the solar system, organic matter that likely formed in interstellar space, and high temperature minerals that formed closer to the Sun. All of these constituents were transported great distances to the region that Bennu’s parent asteroid formed.”

The chemical and atomic similarities of samples from Bennu, the asteroid Ryugu (sampled by JAXA’s (the Japan Aerospace Exploration Agency) Hayabusa2 mission) and the most chemically primitive meteorites collected on Earth suggest their parent asteroids may have formed in a similar, distant region of the early solar system. Yet the differences from Ryugu and meteorites that were seen in the Bennu samples may indicate that this region changed over time or did not mix as well as some scientists have thought. 

We found stardust grains with compositions that predate the solar system, organic matter that likely formed in interstellar space, and high temperature minerals that formed closer to the Sun.

Ann Nguyen

Planetary Scientist

Though some original constituents survived, most of Bennu’s materials were transformed by reactions with water, as reported in the paper co-led by Tom Zega of the University of Arizona and Tim McCoy of the Smithsonian’s National Museum of Natural History in Washington and published in Nature Geoscience. In fact, minerals in the parent asteroid likely formed, dissolved, and reformed over time.

“Bennu’s parent asteroid accumulated ice and dust. Eventually that ice melted, and the resulting liquid reacted with the dust to form what we see today, a sample that is 80% minerals that contain water,” said Zega. “We think the parent asteroid accumulated a lot of icy material from the outer solar system, and then all it needed was a little bit of heat to melt the ice and cause liquids to react with solids.”

Bennu’s transformation did not end there. The third paper, co-led by Lindsay Keller at NASA Johnson and Michelle Thompson of Purdue University, also published in Nature Geoscience, found microscopic craters and tiny splashes of once-molten rock – known as impact melts – on the sample surfaces, signs that the asteroid was bombarded by micrometeorites. These impacts, together with the effects of solar wind, are known as space weathering and occurred because Bennu has no atmosphere to protect it.

“The surface weathering at Bennu is happening a lot faster than conventional wisdom would have it, and the impact melt mechanism appears to dominate, contrary to what we originally thought,” said Keller. “Space weathering is an important process that affects all asteroids, and with returned samples, we can tease out the properties controlling it and use that data and extrapolate it to explain the surface and evolution of asteroid bodies that we haven’t visited.”

Ann Nguyen, co-lead author of a new paper that gives insights into the diverse origin of asteroid Bennu’s “parent” asteroid works alongside the NanoSIMS 50L (nanoscale secondary ion mass spectrometry) ion microprobe in the Astromaterials Research and Exploration Science Division at NASA’s Johnson Space Center in Houston.Credit: NASA/James Blair

As the leftover materials from planetary formation 4.5 billion years ago, asteroids provide a record of the solar system’s history. But as Zega noted, we’re seeing that some of these remnants differ from what has been found in meteorites on Earth, because certain types of asteroids burn up in the atmosphere and never make it to the ground. That, the researchers point out, is why collecting actual samples is so important.

“The samples are really crucial for this work,” Barnes said. “We could only get the answers we got because of the samples. It’s super exciting that we’re finally able to see these things about an asteroid that we’ve been dreaming of going to for so long.”

The next samples NASA expects to help unravel our solar system’s story will be Moon rocks returned by the Artemis III astronauts.

NASA’s Goddard Space Flight Center provided overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator. The university leads the science team and the mission’s science observation planning and data processing. Lockheed Martin Space in Littleton, Colorado, built the spacecraft and provided flight operations. Goddard and KinetX Aerospace were responsible for navigating the OSIRIS-REx spacecraft. Curation for OSIRIS-REx takes place at NASA’s Johnson Space Center in Houston. International partnerships on this mission include the OSIRIS-REx Laser Altimeter instrument from the Canadian Space Agency and asteroid sample science collaboration with JAXA’s Hayabusa2 mission. OSIRIS-REx is the third mission in NASA’s New Frontiers Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington.

Melissa Gaskill
Johnson Space Center

For more information on NASA’s OSIRIS-REx mission, visit:

https://science.nasa.gov/mission/osiris-rex/

Karen Fox / Molly Wasser
Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov

Victoria Segovia
Johnson Space Center
(281) 483-5111
victoria.segovia@nasa.gov

A scanning electron microscope image of a micrometeorite impact crater in a particle of asteroid Bennu material.Credits: NASA/Zia Rahman

5 min read

NASA’s Bennu Samples Reveal Complex Origins, Dramatic Transformation

Asteroid Bennu, sampled by NASA’s OSIRIS-REx mission in 2020, is a mixture of dust that formed in our solar system, organic matter from interstellar space, and pre-solar system stardust. Its unique and varied contents were dramatically transformed over time by interactions with water and exposure to the harsh space environment.

These insights come from a trio of newly published papers based on the analysis of Bennu samples by scientists at NASA and other institutions.

Bennu is made of fragments from a larger parent asteroid destroyed by a collision in the asteroid belt, between the orbits of Mars and Jupiter. One of the papers, co-led by Jessica Barnes at the University of Arizona, Tucson, and Ann Nguyen of NASA’s Johnson Space Center in Houston and published in the journal Nature Astronomy, suggests that Bennu’s ancestor was made up of material that had diverse origins—near the Sun, far from the Sun, and even beyond our solar system.

The analyses show that some of the materials in the parent asteroid, despite very low odds, escaped various chemical processes driven by heat and water and even survived the extremely energetic collision that broke it apart and formed Bennu.

“We traced the origins of these initial materials accumulated by Bennu’s ancestor,” said Nguyen. “We found stardust grains with compositions that predate the solar system, organic matter that likely formed in interstellar space, and high temperature minerals that formed closer to the Sun. All of these constituents were transported great distances to the region that Bennu’s parent asteroid formed.”

The chemical and atomic similarities of samples from Bennu, the asteroid Ryugu (sampled by JAXA’s (the Japan Aerospace Exploration Agency) Hayabusa2 mission) and the most chemically primitive meteorites collected on Earth suggest their parent asteroids may have formed in a similar, distant region of the early solar system. Yet the differences from Ryugu and meteorites that were seen in the Bennu samples may indicate that this region changed over time or did not mix as well as some scientists have thought. 

We found stardust grains with compositions that predate the solar system, organic matter that likely formed in interstellar space, and high temperature minerals that formed closer to the Sun.

Ann Nguyen

Planetary Scientist

Though some original constituents survived, most of Bennu’s materials were transformed by reactions with water, as reported in the paper co-led by Tom Zega of the University of Arizona and Tim McCoy of the Smithsonian’s National Museum of Natural History in Washington and published in Nature Geoscience. In fact, minerals in the parent asteroid likely formed, dissolved, and reformed over time.

“Bennu’s parent asteroid accumulated ice and dust. Eventually that ice melted, and the resulting liquid reacted with the dust to form what we see today, a sample that is 80% minerals that contain water,” said Zega. “We think the parent asteroid accumulated a lot of icy material from the outer solar system, and then all it needed was a little bit of heat to melt the ice and cause liquids to react with solids.”

Bennu’s transformation did not end there. The third paper, co-led by Lindsay Keller at NASA Johnson and Michelle Thompson of Purdue University, also published in Nature Geoscience, found microscopic craters and tiny splashes of once-molten rock – known as impact melts – on the sample surfaces, signs that the asteroid was bombarded by micrometeorites. These impacts, together with the effects of solar wind, are known as space weathering and occurred because Bennu has no atmosphere to protect it.

“The surface weathering at Bennu is happening a lot faster than conventional wisdom would have it, and the impact melt mechanism appears to dominate, contrary to what we originally thought,” said Keller. “Space weathering is an important process that affects all asteroids, and with returned samples, we can tease out the properties controlling it and use that data and extrapolate it to explain the surface and evolution of asteroid bodies that we haven’t visited.”

Ann Nguyen, co-lead author of a new paper that gives insights into the diverse origin of asteroid Bennu’s “parent” asteroid works alongside the NanoSIMS 50L (nanoscale secondary ion mass spectrometry) ion microprobe in the Astromaterials Research and Exploration Science Division at NASA’s Johnson Space Center in Houston.Credit: NASA/James Blair

As the leftover materials from planetary formation 4.5 billion years ago, asteroids provide a record of the solar system’s history. But as Zega noted, we’re seeing that some of these remnants differ from what has been found in meteorites on Earth, because certain types of asteroids burn up in the atmosphere and never make it to the ground. That, the researchers point out, is why collecting actual samples is so important.

“The samples are really crucial for this work,” Barnes said. “We could only get the answers we got because of the samples. It’s super exciting that we’re finally able to see these things about an asteroid that we’ve been dreaming of going to for so long.”

The next samples NASA expects to help unravel our solar system’s story will be Moon rocks returned by the Artemis III astronauts.

NASA’s Goddard Space Flight Center provided overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator. The university leads the science team and the mission’s science observation planning and data processing. Lockheed Martin Space in Littleton, Colorado, built the spacecraft and provided flight operations. Goddard and KinetX Aerospace were responsible for navigating the OSIRIS-REx spacecraft. Curation for OSIRIS-REx takes place at NASA’s Johnson Space Center in Houston. International partnerships on this mission include the OSIRIS-REx Laser Altimeter instrument from the Canadian Space Agency and asteroid sample science collaboration with JAXA’s Hayabusa2 mission. OSIRIS-REx is the third mission in NASA’s New Frontiers Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington.

Melissa Gaskill
Johnson Space Center

For more information on NASA’s OSIRIS-REx mission, visit:

https://science.nasa.gov/mission/osiris-rex/

Karen Fox / Molly Wasser
Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov

Victoria Segovia
Johnson Space Center
(281) 483-5111
victoria.segovia@nasa.gov

The seven members of the Expedition 73 crew worked on science and station keeping activities during their week together aboard the International Space Station.

Week in images: 18-22 August 2025

Discover our week through the lens

The downfall of a long-standing theory in psychology raises a question: How much does the environment we’re raised in change how we literally see the world?

A new analysis uncovers seasonal patterns of dengue, a mosquito-borne disease, across the Americas, which could help scientists anticipate future outbreaks

Astronomers have spotted what could be the brightest Fast Radio Burst explosion of radiation ever, tracing it back to source and further investigating with the James Webb Space Telescope.

The Canon EOS R8 is now $383 off and comes with a wide-angle zoom lens. Now is a good time to buy, too, with the galactic core of the Milky Way still visible — but not for too much longer!

3 min read

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

Using Our Facilities

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.

Gallery 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

Aeronautics Research

NASA Glenn Virtual Tours

Hubble Space Telescope (A)

Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.

Gemini

3 min read

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

Using Our Facilities

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.

Gallery 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

Aeronautics Research

NASA Glenn Virtual Tours

Hubble Space Telescope (A)

Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.

Gemini

A quantum computer that uses particles of light took about two dozen microseconds to complete a calculation that may take trillions of trillions of trillions of years on the world’s best supercomputers

A quantum computer that uses particles of light took about two dozen microseconds to complete a calculation that may take trillions of trillions of trillions of years on the world’s best supercomputers

Money talks louder in some languages than others

This powerful side-by-side comparison shows just how bright a star explosion is.

Researchers spied a wild array of life, including dozens of suspected new species, in an underwater gorge

Explore Hubble

• Hubble Home
• Overview
• Impact & Benefits
• Science
• Observatory
• Team
• Multimedia
• News
• More

2 min read

Hubble Observes Noteworthy Nearby Spiral Galaxy This NASA/ESA Hubble Space Telescope image features the nearby spiral galaxy NGC 2835.ESA/Hubble & NASA, R. Chandar, J. Lee and the PHANGS-HST team

This NASA/ESA Hubble Space Telescope image offers a new view of the nearby spiral galaxy NGC 2835, which lies 35 million light-years away in the constellation Hydra (the Water Snake). The galaxy’s spiral arms are dotted with young blue stars sweeping around an oval-shaped center where older stars reside.

This image differs from previously released images from Hubble and the NASA/ESA/CSA James Webb Space Telescope because it incorporates new data from Hubble that captures a specific wavelength of red light called H-alpha. The regions that are bright in H-alpha emission are visible along NGC 2835’s spiral arms, where dozens of bright pink nebulae appear like flowers in bloom. Astronomers are interested in H-alpha light because it signals the presence of several different types of nebulae that arise during different stages of a star’s life. Newborn, massive stars create nebulae called H II regions that are particularly brilliant sources of H-alpha light, while dying stars can leave behind supernova remnants or planetary nebulae that can also be identified by their H-alpha emission.

By using Hubble’s sensitive instruments to survey 19 nearby galaxies, researchers aim to identify more than 50,000 nebulae. These observations will help to explain how stars affect their birth neighborhoods through intense starlight and winds.

Text Credit: ESA/Hubble

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Details Last Updated Aug 21, 2025 EditorAndrea GianopoulosLocationNASA Goddard Space Flight Center Related Terms

• Astrophysics
• Astrophysics Division
• Galaxies
• Goddard Space Flight Center
• Hubble Space Telescope
• Spiral Galaxies
• The Universe

Keep Exploring Discover More Topics From Hubble Hubble Space Telescope

Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.

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