S69-32240 (22 April 1969) --- Astronaut Neil A. Armstrong, wearing an Extravehicular Mobility Unit, participates in a simulation of deploying and using lunar tools on the surface of the moon during a training exercise in Building 9 on April 22, 1969. Armstrong is the commander of the Apollo 11 lunar landing mission. In the background is a Lunar Module mock-up.

Chris Hansen, Manager of the Extravehicular Activity Office at NASA’s Johnson Space Center answers an audience question during a panel discussion with NASA Administrator Jim Bridenstine and NASA astronaut Kate Rubins during the Artemis Generation Spacesuit event, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The Exploration Extravehicular Mobility Unit (xEMU) suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion Crew Survival System (OCSS) suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

NASA Associate Administrator for the Office of Communications Bettina Inclán moderates a panel discussion with NASA Administrator Jim Bridenstine, NASA astronaut Kate Rubins, and Chris Hansen, Manager of the Extravehicular Activity office at NASA’s Johnson Space Center during the Artemis Generation Spacesuit event, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The Exploration Extravehicular Mobility Unit (xEMU) suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion Crew Survival System (OCSS) suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Kate Rubins answers an audience question during a panel discussion with NASA Administrator Jim Bridenstine and Chris Hansen, Manager of the Extravehicular Activity office at NASA’s Johnson Space Center during the Artemis Generation Spacesuit event, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The Exploration Extravehicular Mobility Unit (xEMU) suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion Crew Survival System (OCSS) suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, NASA astronaut Kate Rubins, and Chris Hansen, Manager of the Extravehicular Activity office at NASA’s Johnson Space Center are seen during a panel discussion at the Artemis Generation Spacesuit event, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The Exploration Extravehicular Mobility Unit (xEMU) suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion Crew Survival System (OCSS) suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

NASA Associate Administrator for the Office of Communications Bettina Inclán moderates a panel discussion with NASA Administrator Jim Bridenstine, NASA astronaut Kate Rubins, and Chris Hansen, Manager of the Extravehicular Activity office at NASA’s Johnson Space Center during the Artemis Generation Spacesuit event, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The Exploration Extravehicular Mobility Unit (xEMU) suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion Crew Survival System (OCSS) suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), is seen during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), is seen during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, gives a thumbs up as Amy Ross, a spacesuit engineer at NASA’s Johnson Space Center, center, high fives Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), after a demonstration of the suits enhanced mobility, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

NASA Pressurized Rover Project Manager Danny Newswander, left, NASA Administrator Bill Nelson, and NASA Extravehicular Activity and Human Surface Mobility Program Lara Kearney, right, discuss the historic agreement signed April 9th at NASA Headquarters, between the United States and Japan to advance sustainable human exploration of the Moon, Wednesday, April 10, 2024, at the Japan Aerospace Exploration Agency (JAXA) offices in Washington. Under the agreement, Japan will design, develop, and operate a pressurized rover for crewed and uncrewed exploration on the Moon. NASA will provide the launch and delivery of the rover to the Moon as well as two Japanese astronaut missions to the lunar surface. Photo Credit: Photo Credit: (NASA/Bill Ingalls)

NASA Pressurized Rover Project Manager Danny Newswander, left, NASA Administrator Bill Nelson, and NASA Extravehicular Activity and Human Surface Mobility Program Lara Kearney, right, discuss the historic agreement signed April 9th at NASA Headquarters, between the United States and Japan to advance sustainable human exploration of the Moon, Wednesday, April 10, 2024, at the Japan Aerospace Exploration Agency (JAXA) offices in Washington. Under the agreement, Japan will design, develop, and operate a pressurized rover for crewed and uncrewed exploration on the Moon. NASA will provide the launch and delivery of the rover to the Moon as well as two Japanese astronaut missions to the lunar surface. Photo Credit: Photo Credit: (NASA/Bill Ingalls)

NASA Pressurized Rover Project Manager Danny Newswander, left, NASA Administrator Bill Nelson, and NASA Extravehicular Activity and Human Surface Mobility Program Lara Kearney, right, discuss the historic agreement signed April 9th at NASA Headquarters, between the United States and Japan to advance sustainable human exploration of the Moon, Wednesday, April 10, 2024, at the Japan Aerospace Exploration Agency (JAXA) offices in Washington. Under the agreement, Japan will design, develop, and operate a pressurized rover for crewed and uncrewed exploration on the Moon. NASA will provide the launch and delivery of the rover to the Moon as well as two Japanese astronaut missions to the lunar surface. Photo Credit: Photo Credit: (NASA/Bill Ingalls)

NASA Extravehicular Activity and Human Surface Mobility Program Lara Kearney discusses the historic agreement signed April 9th at NASA Headquarters, between the United States and Japan to advance sustainable human exploration of the Moon, Wednesday, April 10, 2024, at the Japan Aerospace Exploration Agency (JAXA) offices in Washington. Under the agreement, Japan will design, develop, and operate a pressurized rover for crewed and uncrewed exploration on the Moon. NASA will provide the launch and delivery of the rover to the Moon as well as two Japanese astronaut missions to the lunar surface. Photo Credit: Photo Credit: (NASA/Bill Ingalls)

AS16-117-18826 (23 April 1972) --- Astronaut John W. Young collects samples at the North Ray Crater geological site during the mission's third and final Apollo 16 extravehicular activity (EVA). He has a rake in his hand, and the gnomon is near his foot. Note how soiled Young's Extravehicular Mobility Unit (EMU) is. While astronauts Young, commander; and Charles M. Duke Jr., lunar module pilot; descended in the Apollo 16 Lunar Module (LM) "Orion" to explore the Descartes highlands landing site on the moon, astronaut Thomas K. Mattingly II, command module pilot, remained with the Command and Service Modules (CSM) "Casper" in lunar orbit.

A ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU) is seen Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington, DC. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station. Photo Credit: (NASA/Joel Kowsky)

S69-32247 (22 April 1969) --- Astronaut Edwin E. Aldrin Jr., wearing an Extravehicular Mobility Unit (EMU), simulates deploying the Solar Wind Composition (SWC) experiment, on the surface of the moon, during a training exercise in Building 9 on April 22, 1969. The SWC is a component of the Early Apollo Scientific Experiment Package (EASEP). Aldrin is the lunar module pilot of the Apollo 11 lunar landing mission.

Two members of the Apollo 11 lunar landing mission participate in a simulation of deploying and using lunar tools on the surface of the moon during a training exercise in bldg 9 on April 22, 1969. Astronaut Edwin E. Aldrin Jr. (on left), lunar module pilot, uses scoop and tongs to pick up sample. Astronaut Neil A. Armstrong, Apollo 11 commander, holds bag to receive sample. In the background is a Lunar Module mockup. Both men are wearing Extravehicular Mobility Units (EMU).

S69-32248 (22 April 1969) --- Astronaut Neil A. Armstrong, wearing an Extravehicular Mobility Unit (EMU), participates in a simulation of deploying and using lunar tools, on the surface of the moon, during a training exercise in Building 9 on April 22, 1969. Armstrong is the commander of the Apollo 11 lunar landing mission. He is using a scoop to place the sample into bag. On the right is a Lunar Module (LM) mock-up.

Astronaut Neil A. Armstrong, commander of the Apollo 11 lunar landing mission, is photographed during thermovacuum training in Chamber B of the Space Environment Simulation Laboratory, Building 32, Manned Spacecraft Center. He is wearing an Extravehicular Mobility Unit. The training simulated lunar surface vacuum and thermal conditions during astronaut operations outside the Lunar Module on the moon's surface. The mirror was used to reflect solar light.

S69-32242 (22 April 1969) --- Astronaut Neil A. Armstrong, wearing an Extravehicular Mobility Unit (EMU), participates in a simulation of deploying and using lunar tools, on the surface of the moon, during a training exercise in Building 9 on April 22, 1969. Armstrong, commander of the Apollo 11 lunar landing mission, is holding sample bags. On the left is the Lunar Module (LM) mock-up.

NASA Administrator Jim Bridenstine delivers opening remarks at the Artemis Generations Spacesuit event, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The Exploration Extravehicular Mobility Unit (xEMU) suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion Crew Survival System (OCSS) suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, and Amy Ross, a spacesuit engineer at NASA’s Johnson Space Center, left, are seen with Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, and Amy Ross, a spacesuit engineer at NASA’s Johnson Space Center, left, are seen with Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, and Amy Ross, a spacesuit engineer at NASA’s Johnson Space Center, left, are seen with Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

Amy Ross, a spacesuit engineer at NASA’s Johnson Space Center, is seen with Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, high fives Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine is seen with Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), during a demonstration of the suit, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. Photo Credit: (NASA/Joel Kowsky)

S69-32243 (22 April 1969) --- Two members of the Apollo 11 lunar landing mission participate in a simulation of deploying and using lunar tools, on the surface of the moon, during a training exercise in Building 9 on April 22, 1969. Astronaut Edwin E. Aldrin Jr. (on left), lunar module pilot, uses a scoop to pick up a sample. Astronaut Neil A. Armstrong, Apollo 11 commander, holds bag to receive sample. In the background is a Lunar Module (LM) mock-up. Both crewmembers are wearing Extravehicular Mobility Units (EMU).

AS11-40-5868 (20 July 1969) --- Astronaut Edwin E. Aldrin Jr., lunar module pilot, descends the steps of the Lunar Module (LM) ladder as he prepares to walk on the moon. He had just egressed the LM. This photograph was taken by astronaut Neil A. Armstrong, commander, with a 70mm lunar surface camera during the Apollo 11 extravehicular activity (EVA). While Armstrong and Aldrin descended in the LM "Eagle" to explore the moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) in lunar orbit.

AS11-40-5902 (20 July 1969) --- Astronaut Edwin E. Aldrin Jr., lunar module pilot, walks on the surface of the moon near a leg of the Lunar Module during the Apollo 11 extravehicular activity (EVA). Astronaut Neil A. Armstrong, Apollo 11 commander, took this photograph with a 70mm lunar surface camera. The astronauts' bootprints are clearly visible in the foreground. While astronauts Armstrong and Aldrin descended in the Lunar Module (LM) "Eagle" to explore the Sea of Tranquility region of the moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) "Columbia" in lunar orbit.

AS11-40-5875 (20 July 1969) --- Astronaut Edwin E. Aldrin Jr., lunar module pilot of the first lunar landing mission, poses for a photograph beside the deployed United States flag during an Apollo 11 extravehicular activity (EVA) on the lunar surface. The Lunar Module (LM) is on the left, and the footprints of the astronauts are clearly visible in the soil of the moon. Astronaut Neil A. Armstrong, commander, took this picture with a 70mm Hasselblad lunar surface camera. While astronauts Armstrong and Aldrin descended in the LM, the "Eagle", to explore the Sea of Tranquility region of the moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) "Columbia" in lunar orbit. Photo credit: NASA

AS11-40-5964 (20 July 1969) --- Astronaut Edwin E. Aldrin Jr., lunar module pilot, is photographed during the Apollo 11 extravehicular activity (EVA) on the moon. He is driving one of two core tubes into the lunar soil. Astronaut Neil A. Armstrong, commander, took this picture with a 70mm lunar surface camera. Aldrin stands near the Solar Wind Composition (SWC) experiment, a component of the Early Apollo Scientific Experiments Package (EASEP, deployed earlier). The SWC is in the center background.

AS11-40-5863 (20 July 1969) --- Astronaut Edwin E. Aldrin Jr., lunar module pilot, is photographed egressing the Lunar Module (LM) during the Apollo 11 extravehicular activity (EVA) on the moon. This photograph was taken by astronaut Neil A. Armstrong, commander, with a 70mm lunar surface camera. While astronauts Armstrong and Aldrin descended in the Lunar Module (LM) "Eagle" to explore the Sea of Tranquility region of the moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) "Columbia" in lunar orbit.

AS11-40-5903 (20 July 1969) --- Astronaut Edwin E. Aldrin Jr., lunar module pilot, walks on the surface of the moon near the leg of the Lunar Module (LM) "Eagle" during the Apollo 11 extravehicular activity (EVA). Astronaut Neil A. Armstrong, commander, took this photograph with a 70mm lunar surface camera. While astronauts Armstrong and Aldrin descended in the Lunar Module (LM) "Eagle" to explore the Sea of Tranquility region of the moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) "Columbia" in lunar orbit.

Amy Ross, a spacesuit engineer at NASA’s Johnson Space Center, left, and NASA Administrator Jim Bridenstine, second from left, watch as Kristine Davis, a spacesuit engineer at NASA’s Johnson Space Center, wearing a ground prototype of NASA’s new Exploration Extravehicular Mobility Unit (xEMU), and Dustin Gohmert, Orion Crew Survival Systems Project Manager at NASA’s Johnson Space Center, wearing the Orion Crew Survival System suit, right, wave after being introduced by the administrator, Tuesday, Oct. 15, 2019 at NASA Headquarters in Washington. The xEMU suit improves on the suits previous worn on the Moon during the Apollo era and those currently in use for spacewalks outside the International Space Station and will be worn by first woman and next man as they explore the Moon as part of the agency’s Artemis program. The Orion suit is designed for a custom fit and incorporates safety technology and mobility features that will help protect astronauts on launch day, in emergency situations, high-risk parts of missions near the Moon, and during the high-speed return to Earth. Photo Credit: (NASA/Joel Kowsky)

Robotics technologist Brendan Chamberlain-Simon, left, of NASA's Jet Propulsion Laboratory and spacesuit engineer Zach Fester of the agency's Johnson Space Center adjust a thermal vacuum chamber called CITADEL at JPL on Nov. 12, 2024, before testing an astronaut boot inside the chamber. Built to prepare potential robotic explorers for the frosty, low-pressure conditions on ocean worlds like Jupiter's frozen moon Europa, CITADEL (Cryogenic Ice Testing, Acquisition Development, and Excavation Laboratory) has also proven key to evaluating how astronaut gloves and boots hold up in extraordinary cold. It can reach temperatures as low as low as minus 370 degrees Fahrenheit (minus 223 degrees Celsius), approximating extreme conditions Artemis III astronauts will confront in permanently shadowed regions of the lunar South Pole. The boot testing was initiated by the Extravehicular Activity and Human Surface Mobility Program at NASA Johnson and took place from October 2024 to January 2025. The boot is part of a NASA spacesuit called the Exploration Extravehicular Mobility Unit, or xEMU. Test results haven't yet been fully analyzed. In addition to spotting vulnerabilities with existing suits, the experiments are intended to help NASA develop this unique test capability and prepare criteria for standardized, repeatable, and inexpensive test methods for the next-generation lunar suit being built by Axiom Space. https://photojournal.jpl.nasa.gov/catalog/PIA26593

A boot that's part of a NASA lunar surface spacesuit prototype is readied for testing inside a thermal vacuum chamber called CITADEL at the agency's Jet Propulsion Laboratory in Southern California on Nov. 8, 2024. The thick aluminum plate at right stands in for the frigid surface of the lunar South Pole, where Artemis III astronauts will confront conditions more extreme than any previously experienced by humans. Built to prepare potential future robotic spacecraft for the frosty, low-pressure conditions on ocean worlds like Jupiter's frozen moon Europa, CITADEL (Cryogenic Ice Testing, Acquisition Development, and Excavation Laboratory) has also proven key to evaluating how astronaut gloves and boots hold up in extraordinary cold. It can reach temperatures as low as low as minus 370 degrees Fahrenheit (minus 223 degrees Celsius), approximating conditions in permanently shadowed regions that astronauts will explore. Figure A, showing the outer boot sole, was taken from inside CITADEL on Nov. 13, 2024. The boot is positioned in a load lock, one of four small drawer-like chambers through which test materials are inserted into the larger chamber. Initiated by the Extravehicular Activity and Human Surface Mobility Program at NASA's Johnson Space Center, the boot testing took place from October 2024 to January 2025. The boot is part of a NASA spacesuit called the Exploration Extravehicular Mobility Unit, or xEMU. Results haven't yet been fully analyzed. In addition to spotting vulnerabilities with existing suits, the experiments are intended to help NASA develop this unique test capability and prepare criteria for standardized, repeatable, and inexpensive test methods for the next-generation lunar suit being built by Axiom Space. https://photojournal.jpl.nasa.gov/catalog/PIA26592

Spacesuit engineer Shane McFarland, left, of the Advanced Suit Team at NASA's Johnson Space Center prepares an astronaut glove for thermal vacuum testing inside a chamber at the agency's Jet Propulsion Laboratory in Southern California on Nov. 1, 2023. Tim Brady of the NASA Engineering and Safety Center (NESC), which spearheaded the glove testing campaign, looks on as McFarland positions the glove in a load lock – one of four small drawer-like chambers through which test materials are inserted into the larger main chamber of a facility called CITADEL (Cryogenic Ice Testing, Acquisition Development, and Excavation Laboratory). The glove was tested at vacuum and temperatures as low as minus 352 degrees Fahrenheit (minus 213 degrees Celsius) – temperatures as frigid as those Artemis III astronauts could experience on the Moon's South Pole. Built to prepare potential future robotic spacecraft for the frosty, low-pressure conditions on ocean worlds like Jupiter's frozen moon Europa, CITADEL has also proven key to evaluating how astronaut gloves and boots hold up in extraordinary cold. The NASA Engineering and Safety Center spearheaded a glove testing campaign in CITADEL from October 2023 to March 2024. Part of a spacesuit design called the Extravehicular Mobility Unit, the gloves tested in the chamber are the sixth version of a glove NASA began using in the 1980s. The testing in CITADEL showed that the legacy glove would not meet thermal requirements in the more challenging lunar South Pole environment. In addition to spotting vulnerabilities with existing suits, the CITADEL experiments will help NASA develop this unique test capability and prepare criteria for standardized, repeatable, and inexpensive test methods for the next-generation lunar suit being built by Axiom Space. https://photojournal.jpl.nasa.gov/catalog/PIA26591

An astronaut glove designed for use during spacewalks on the International Space Station is prepared for thermal vacuum testing inside a chamber at NASA's Jet Propulsion Laboratory in Southern California on Nov. 1, 2023. The glove lies in a load lock, one of four small drawer-like chambers through which test materials are inserted into the larger main chamber of a facility called CITADEL (Cryogenic Ice Testing, Acquisition Development, and Excavation Laboratory). The glove was tested at vacuum and temperatures as low as minus 352 degrees Fahrenheit (minus 213 degrees Celsius) – temperatures as frigid as those Artemis III astronauts could experience on the Moon's South Pole. Built to prepare potential future robotic spacecraft for the frosty, low-pressure conditions on ocean worlds like Jupiter's frozen moon Europa, CITADEL has also proven key to evaluating how astronaut gloves and boots hold up in extraordinary cold. The NASA Engineering and Safety Center spearheaded a glove testing campaign in CITADEL from October 2023 to March 2024. Part of a spacesuit design called the Extravehicular Mobility Unit, the gloves tested in the chamber are the sixth version of a glove NASA began using in the 1980s. The testing in CITADEL showed that the legacy glove would not meet thermal requirements in the more challenging lunar South Pole environment. In addition to spotting vulnerabilities with existing suits, the CITADEL experiments will help NASA develop this unique test capability and prepare criteria for standardized, repeatable, and inexpensive test methods for the next-generation lunar suit being built by Axiom Space. https://photojournal.jpl.nasa.gov/catalog/PIA26430