NASA astronauts Josh Cassada, foreground, and Suni Williams pose for a photograph inside of the Boeing Mockup Trainer at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the commercial crew flight assignments announcement Aug. 3. The pair was assigned to launch aboard Boeing’s CST-100 Starliner on the company’s first operational mission to the International Space Station in partnership with NASA’s Commercial Crew Program. Photo Credit: (NASA/Bill Ingalls)

The first U.S. astronauts who will fly on American-made, commercial spacecraft to and from the International Space Station, wave after being announced, Friday, Aug. 3, 2018 at NASA's Johnson Space Center in Houston, Texas. The astronauts are, from left to right: Victor Glover, Mike Hopkins, Bob Behnken, Doug Hurley, Nicole Aunapu Mann, Chris Ferguson, Eric Boe, Josh Cassada, and Suni Williams. The agency assigned the nine astronauts to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Kjell Lindgren poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Victor Glover and Mike Hopkins, assigned to fly on the first operational mission of SpaceX’s Crew Dragon, pose inside a mockup of the spacecraft at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the agency’s announcement of their commercial crew assignment Aug. 3. Nine U.S. astronauts were selected for commercial crew flight assignments on the first test flights and operational missions for Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon. Photo Credit: (NASA/Bill Ingalls)

Josh Litofsky leads a Gateway lunar dust adhesion testing campaign at NASA’s Johnson Space Center in Houston. His team studies how lunar dust interacts with materials chosen for Gateway's construction. Here, Litofsky carefully positions a sample holder inside a vacuum chamber. Litofksy’s work seeks to validate the Gateway On-orbit Lunar Dust Modeling and Analysis Program (GOLDMAP), developed by Ronald Lee, also of Johnson Space Center. By considering factors such as the design and configuration of the space station, the materials used, and the unique conditions in lunar orbit, GOLDMAP helps predict how dust may move and settle on Gateway’s external surfaces.

NASA Administrator Jared Isaacman, center, watches as NASA astronaut Michael Fincke egresses the SpaceX Dragon Endeavour spacecraft, Thursday, Jan. 15, 2026. Isaacman, NASA astronauts, and agency leadership monitored the 3:41 a.m. ET splashdown and subsequent crew egress from the Christopher C. Kraft Jr. Mission Control Center at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/John Kraus)

NASA astronaut Victor Glover poses for a portrait, Tuesday, Sept. 15, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Nicole Mann poses for a portrait, Tuesday, Sept. 15, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine, left, is shown the Orion test crew capsule that will be used for the Ascent Abort-2 (AA-2) test by Orion AA-2 Crew Module Manager Dr. Jon Olansen, 2nd from left, as Orion Program Manager Mark Kirasich, right, looks on, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence speaks in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

Nine U.S. astronauts selected for commercial crew flight assignments are directed for a group photograph by NASA photographer Robert Markowitz on Aug. 2, 2018 ahead of the announcement Aug. 3, at NASA’s Johnson Space Center in Houston, Texas. From left NASA astronauts Suni Williams, Josh Cassada, Eric Boe, Nicole Mann, Boeing astronaut Chris Ferguson, NASA astronauts Doug Hurley, Bob Behnken, Mike Hopkins and Victor Glover were assigned to the first test flights and operational missions for Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Josh Cassada stops to pose for photograph as he exits the Boeing Mockup Trainer at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the commercial crew flight assignments announcement Aug. 3. Cassada, and NASA astronaut Suni Williams were assigned to launch aboard Boeing’s CST-100 Starliner on the company’s first operational mission to the International Space Station in partnership with NASA’s Commercial Crew Program. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut candidate Kayla Barron is seen after donning her spacesuit, Friday, July 12, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine gives remarks during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine, center, speaks with Vice President Mike Pence and NASA astronaut Suni Williams during a tour of the Neutral Buoyancy Laboratory at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut candidate Loral O’Hara poses for a portrait in the Blue Flight Control Room, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine delivers remarks prior to introducing Vice President Mike Pence in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

Vice President Mike Pence speaks in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

The first U.S. astronauts who will fly on American-made, commercial spacecraft to and from the International Space Station, wave after being announced, Friday, Aug. 3, 2018 at NASA's Johnson Space Center in Houston, Texas. Astronauts Bob Behnken, left, Victor Glover, Doug Hurley, and Mike Hopkins will fly SpaceX's Crew Dragon flights, and astronauts Eric Boe, Suni Williams, Chris Ferguson, Josh Cassada, and Nicole Aunapu Mann, right, will fly on Boeing's CST-100 Starliner. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Tracy Caldwell Dyson pauses for a portrait while donning her spacesuit and going under water in the Neutral Buoyancy Lab, Monday, July 8, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, right, speaks during a workforce Q&A session, Friday, Jan. 23, 2026, at NASA’s Johnson Space Center in Houston, Texas. Johnson marks the seventh stop in Isaacman’s roadshow to visit NASA facilities and engage directly with the agency’s workforce. Photo Credit: (NASA/John Kraus)

jsc2025e076418 (09/22/2025) NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025.

Retired NASA astronaut Scott Kelly poses a portrait, Monday, July 8, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Jessica Meir poses for a portrait, Tuesday, Sept. 15, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

Acting director of the Exploration Integration and Science Directorate and Chief Scientist at NASA's Johnson Space Center Dr. Eileen Stansbery, right, is seen with Vice President Mike Pence and Apollo 17 astronaut and geologist Dr. Harrison Schmitt in the Astromaterials Curation Laboratory at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Eric Boe poses for a photograph as he exits the Boeing Mockup Trainer at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the commercial crew flight assignments announcement Aug. 3. Boe, along with NASA astronaut Nicole Aunapu Mann and Boeing astronaut Chris Ferguson were assigned to launch aboard Boeing’s CST-100 Starliner on the company’s Crew Flight Test targeted for mid-2019 in partnership with NASA’s Commercial Crew Program. Photo Credit: (NASA/Bill Ingalls)

George Alderman, NASA deputy press secretary, left, speaks during a press conference as NASA Administrator Jared Isaacman, center, and Joel Montalbano, deputy associate administrator for NASA’s Space Operations Mission Directorate, right, listen, Thursday, Jan. 15, 2026, at NASA’s Johnson Space Center in Houston, Texas, following the splashdown of the agency’s Crew-11 mission at 3:41 a.m. ET. Photo Credit: (NASA/John Kraus)

NASA astronaut Warren Hoburg poses for a portrait, Thursday, Sept. 17, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine, left, is shown the Orion test crew capsule that will be used for the Ascent Abort-2 (AA-2) test by Orion AA-2 Crew Module Manager Dr. Jon Olansen, 2nd from left, with Orion Program Manager Mark Kirasich, and NASA Johnson Space Center Director Mark Geyer, right, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine delivers remarks prior to introducing Vice President Mike Pence in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jared Isaacman speaks during a workforce Q&A session, Friday, Jan. 23, 2026, at NASA’s Johnson Space Center in Houston, Texas. Johnson marks the seventh stop in Isaacman’s roadshow to visit NASA facilities and engage directly with the agency’s workforce. Photo Credit: (NASA/John Kraus)

NASA astronaut Bob Behnken is seen during a NASA event where it was announced that he, and NASA astronaut Doug Hurley are assigned to SpaceX’s Crew Dragon Demo-2 flight to the International Space Station, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Nicole Aunapu Mann is seen during a NASA event where it was announced that she, NASA astronaut Eric Boe, and Boeing astronaut Chris Ferguson are assigned to the Boeing CST-100 Starliner Crew Test Flight to the International Space Station, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, left, speaks with ground controllers Anthony Ayes, center, and Josh Kantara, right, Thursday, Jan. 15, 2026, inside the Christopher C. Kraft Jr. Mission Control Center at NASA’s Johnson Space Center in Houston, Texas, following splashdown of the agency’s Crew-11 mission at 3:41 a.m. ET. Photo Credit: (NASA/John Kraus)

NASA Administrator Jared Isaacman, left, speaks with Rachel Krause, SPARTAN (Station Power, Articulation, Thermal, and Analysis) flight controller, right, Thursday, Jan. 15, 2026, inside the Christopher C. Kraft Jr. Mission Control Center at NASA’s Johnson Space Center in Houston, Texas, following splashdown of the agency’s Crew-11 mission at 3:41 a.m. ET. Photo Credit: (NASA/John Kraus)

Vice President Mike Pence shakes hands with NASA Administrator Jim Bridenstine after being intruduced prior to speaking in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jared Isaacman speaks during a workforce Q&A session, Friday, Jan. 23, 2026, at NASA’s Johnson Space Center in Houston, Texas. Johnson marks the seventh stop in Isaacman’s roadshow to visit NASA facilities and engage directly with the agency’s workforce. Photo Credit: (NASA/John Kraus)

NASA Administrator Jim Bridenstine, left, listens as Orion AA-2 Crew Module Manager Dr. Jon Olansen discusses the Orion test crew capsule that will be used for the Ascent Abort-2 (AA-2) test, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Bob Behnken, left, and Doug Hurley, assigned to fly on the first test flight of SpaceX’s Crew Dragon, pose inside a mockup of the spacecraft at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the agency’s announcement of their commercial crew assignment Aug. 3. Nine U.S. astronauts were selected for commercial crew flight assignments on the first test flights and operational missions for Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence speaks in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, seated left, and NASA Johnson Space Center Director Mark Geyer, seated right participate in a media roundtable in front of the Orion test crew capsule for the Ascent Abort-2 (AA-2) test, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Nicole Mann poses for a photograph as she exits the Boeing Mockup Trainer at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the commercial crew flight assignments announcement Aug. 3. Mann, along with NASA astronaut Eric Boe and Boeing astronaut Chris Ferguson were assigned to launch aboard Boeing’s CST-100 Starliner on the company’s Crew Flight Test targeted for mid-2019 in partnership with NASA’s Commercial Crew Program. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Christina Koch is seen onboard the International Space Station from the Blue Flight Control Room, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Victor Glover is seen during a NASA event where it was announced that he, and NASA astronaut Mike Hopkins are assigned to the first mission to the International Space Station onboard SpaceX’s Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Jonathan Kim poses for a portrait, Tuesday, Sept. 8, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

jsc2025e076363 (09/22/2025) --- NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025.

NASA Orion AA-2 Crew Module Manager Dr. Jon Olansen, left, NASA Administrator Jim Bridenstine, NASA Johnson Space Center Director Mark Geyer, and Orion Program Manager Mark Kirasich, right, are seen inside the Orion test crew capsule for the Ascent Abort-2 (AA-2) test, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

jsc2025e076362 (09/22/2025) --- NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025.

NASA astronaut Frank Rubio poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA Orion AA-2 Crew Module Manager Dr. Jon Olansen, right, talks to NASA Administrator Jim Bridenstine outside of the Orion test crew capsule that will be used for the Ascent Abort-2 (AA-2) test, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine, left, listens as Orion AA-2 Crew Module Manager Dr. Jon Olansen discusses the Orion test crew capsule that will be used for the Ascent Abort-2 (AA-2) test, Thursday, Aug. 2, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Christina Koch poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine delivers remarks during the 2018 Agency Honor Awards ceremony, Thursday, Aug. 2, 2018 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence speaks in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, far right, talks to astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts Bob Behnken, left, Victor Glover, Doug Hurley, and Mike Hopkins will fly SpaceX's Crew Dragon flights, and astronauts Eric Boe, Suni Williams, Chris Ferguson, Josh Cassada, and Nicole Aunapu Mann, right, will fly on Boeing's CST-100 Starliner. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Suni Williams stops to pose for photograph as she exits the Boeing Mockup Trainer at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the commercial crew flight assignments announcement Aug. 3. Williams and NASA astronaut Josh Cassada were assigned to launch aboard Boeing’s CST-100 Starliner on the company’s first operational mission to the International Space Station in partnership with NASA’s Commercial Crew Program. Photo Credit: (NASA/Bill Ingalls)

jsc2024e040691 -- A prototype of the Mini Potable Water Dispenser, currently in development at NASA’s Marshall Space Flight Center, is displayed alongside various food pouches during a demonstration at NASA’s Johnson Space Center. Photo Credit: NASA/David DeHoyos

Boeing Defense, Space and Security President and CEO Leanne Caret gives remarks during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Joe Acaba poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Nicole Mann, assigned to fly in the Crew Flight Test of Boeing’s CST-100 Starliner, practices opening a mockup of the spacecraft hatch on the International Space Station’s International Docking Adapter at NASA’s Johnson Space Center in Houston, Texas. Boeing’s Crew Flight Test is part of NASA’s Commercial Crew Program, which is working with Boeing to return human spaceflight launches to the space station from U.S. soil.

NASA Johnson Space Center Director Mark Geyer gives remarks during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

The first U.S. astronauts who will fly on American-made, commercial spacecraft to and from the International Space Station, wave after being announced, Friday, Aug. 3, 2018 at NASA's Johnson Space Center in Houston, Texas. The astronauts are, from left to right: Victor Glover, Mike Hopkins, Bob Behnken, Doug Hurley, Nicole Aunapu Mann, Chris Ferguson, Eric Boe, Josh Cassada, and Suni Williams. The agency assigned the nine astronauts to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Eric Boe is seen during a NASA event where it was announced that he, Boeing astronaut Chris Ferguson, and NASA astronaut Nicole Aunapu Mann are assigned to the Boeing CST-100 Starliner Crew Test Flight to the International Space Station, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Suni Williams speaks with Vice President Mike Pence and NASA Administrator Jim Bridenstine during a tour of the Neutral Buoyancy Laboratory at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jared Isaacman, right, greets Katie Burlingame, ETHOS (Environmental and Thermal Operating Systems) flight controller and instructor, left, Thursday, Jan. 15, 2026, inside the Christopher C. Kraft Jr. Mission Control Center at NASA’s Johnson Space Center in Houston, Texas, following splashdown of the agency’s Crew-11 mission at 3:41 a.m. ET. Photo Credit: (NASA/John Kraus)

NASA astronaut Scott Tingle poses for a portrait, Tuesday, Sept. 8, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Suni Williams is seen during a NASA event where it was announced that she, and NASA astronaut Josh Cassada are assigned to the first mission to the International Space Station onboard Boeing’s CST-100 Starliner, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence speaks in the Teague Auditorium at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Vice President Pence spoke about the future of human space exploration and the agency’s plans to return to the Moon as a forerunner to future human missions to Mars, stating that “soon and very soon American astronauts will return to space on American rockets launched from American soil." Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Mike Hopkins is seen during a NASA event where it was announced that he, and NASA astronaut Victor Glover are assigned to the first mission to the International Space Station onboard SpaceX’s Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

SpaceX President and Chief Operation Officer Gwynne Shotwell gives remarks during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

Boeing astronaut Chris Ferguson poses for a photograph as he exits the Boeing Mockup Trainer at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the commercial crew flight assignments announcement Aug. 3. Ferguson, along with NASA astronauts Eric Boe and Nicole Aunapu Mann were assigned to launch aboard Boeing’s CST-100 Starliner on the company’s Crew Flight Test targeted for mid-2019 in partnership with NASA’s Commercial Crew Program. Photo Credit: (NASA/Bill Ingalls)

NASA Kennedy Space Center Director Bob Cabana gives remarks during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

jsc2025e076364 (09/22/2025) --- Photographic coverage of NASA 2025 Astronaut Candidate (ASCAN) Announcement Ceremony

NASA astronaut Josh Cassada is seen during a NASA event where it was announced that he, and NASA astronaut Suni Williams are assigned to the first mission to the International Space Station onboard Boeing’s CST-100 Starliner, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence, center, views Sample 15014, which was collected during Apollo 15 with NASA's Apollo Sample Curator Ryan Zeigler, left, and Apollo 17 astronaut and geologist Dr. Harrison Schmitt, right, in Lunar Curation Laboratory at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Sample 15014 is one of nine samples out of the 2,196 collected during the Apollo missions that was sealed inside its container on the Moon and still containes gasses from the Moon. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Matthew Dominick poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence and NASA astronaut Suni Williams watch on monitors as NASA commercial crew astronauts Victor Glover and Nicole Mann conduct training in the pool at the Neutral Buoyancy Laboratory at NASA's Johnson Space Center during a tour of the facility, Thursday, Aug. 23, 2018 in Houston, Texas. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Doug Hurley is seen during a NASA event where it was announced that he, and NASA astronaut Bob Behnken are assigned to SpaceX’s Crew Dragon Demo-2 flight to the International Space Station, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon where announced during the event. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut candidate Frank Rubio poses for a portrait in the anechoic chamber, Wednesday, July 10, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jared Isaacman, left, greets members of the workforce, Friday, Jan. 23, 2026, at NASA’s Johnson Space Center in Houston, Texas. Johnson marks the seventh stop in Isaacman’s roadshow to visit NASA facilities and engage directly with the agency’s workforce. Photo Credit: (NASA/John Kraus)

NASA astronaut candidate Jasmin Moghbeli poses for a portrait in the Systems Engineering Simulator, a real-time, crew-in-the-loop engineering simulator for the space station and advanced spaceflight programs, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

jsc2024e064820 -- Stephanie Dudley, Gateway’s mission integration and utilization manager, sits inside a high-fidelity HALO (Habitation and Logistics Outpost) mockup at NASA’s Johnson Space Center. HALO is one four Gateway modules where astronauts will live, conduct science, and prepare for missions to investigate the lunar South Pole region. Dudley works with NASA’s partner space agencies and academia to identify science opportunities on Gateway.

NASA astronauts Bob Behnken, left, and Doug Hurley, assigned to fly on the first test flight of SpaceX’s Crew Dragon, pose inside a mockup of the spacecraft at NASA’s Johnson Space Center in Houston, Texas on Aug. 2, 2018 ahead of the agency’s announcement of their commercial crew assignment Aug. 3. Nine U.S. astronauts were selected for commercial crew flight assignments on the first test flights and operational missions for Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut candidate Kayla Barron poses for a portrait after donning her spacesuit, Friday, July 12, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Jasmin Moghbeli poses for a portrait, Tuesday, Sept. 8, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence and NASA astronaut Suni Williams watch on monitors as NASA commercial crew astronauts Victor Glover and Nicole Mann conduct training in the pool at the Neutral Buoyancy Laboratory at NASA's Johnson Space Center during a tour of the facility, Thursday, Aug. 23, 2018 in Houston, Texas. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Stan Love poses for a portrait in the Neutral Buoyancy Lab control room, Monday, July 8, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Raja Chari poses for a portrait, Tuesday, Sept. 8, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

jsc2024e024308 (April 3, 2024) -- Gateway electric field validation tests for the Gateway communication and tracking system antennas. Photo Credit: NASA/Robert Markowitz

NASA astronauts Nicole Mann and Barry “Butch” Wilmore and Boeing astronaut Chris Ferguson review International Space Station training at NASA’s Johnson Space Center in Houston, Texas. Mann and Ferguson are assigned to Boeing’s Crew Flight Test, the first flight of the company’s CST-100 Starliner spacecraft. The Crew Flight Test is part of NASA’s Commercial Crew Program, which is working with Boeing to return human spaceflight launches to the space station from U.S. soil.

Vice President Mike Pence is seen with NASA astronaut candidates Loral O'Hara, Woody Hoburg, and Jonny Kim during a tour of the Neutral Buoyancy Laboratory at NASA's Johnson Space Center, Thursday, Aug. 23, 2018 in Houston, Texas. Photo Credit: (NASA/Joel Kowsky)

NASA Johnson Space Center Director Mark Geyer gives remarks during a NASA event announcing the astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon, Friday, Aug. 3, 2018 at NASA’s Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Nicole Mann gives a thumbs up from inside the Orion mockup, Wednesday, July 10, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Jessica Watkins poses for a portrait, Tuesday, Sept. 15, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

Dr. Robert R. Gilruth (left), director of what is now NASA’s Johnson Space Center, and President John F. Kennedy look at a small model of the Apollo Command Module on September 1, 1962.

NASA astronaut Shane Kimbrough poses for a portrait in the Space Exploration Vehicle (SEV), an engineering concept used to test new technologies for future surface and deep-space exploration vehicles, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Stephanie Wilson poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

jsc2024e024307 (April 3, 2024) -- Gateway electric field validation tests for the Gateway communication and tracking system antennas. Photo Credit: NASA/Robert Markowitz

NASA astronaut Kayla Barron poses for a portrait, Wednesday, Sept. 16, 2020, in the Blue Flight Control Room at NASA’s Johnson Space Center in Houston. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Don Pettit poses for a portrait after donning his spacesuit, Friday, July 12, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)