jsc2025e074959 (September 16, 2025) --- Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025. Credit: NASA/Bill Stafford

jsc2025e074962 (September 16, 2025) --- Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025. Credit: NASA/Bill Stafford

jsc2025e074960 (September 16, 2025) --- Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025. Credit: NASA/Bill Stafford

jsc2025e074958 (September 16, 2025) --- Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025. Credit: NASA/Bill Stafford

jsc2025e074961 (September 16, 2025) --- Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025. Credit: NASA/Bill Stafford

jsc2025e074963 (September 16, 2025) --- Imelda Muller was selected by NASA to join the 2025 astronaut candidate class. She reported for duty in September 2025. Credit: NASA/Bill Stafford

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.

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.

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.

jsc2025e076272 (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.

jsc2025e074866 (September 16, 2025) --- NASA astronaut candidate Imelda Muller poses for a portrait at NASA’s Johnson Space Center in Houston, Texas. Muller was selected by NASA to join the 2025 astronaut candidate class and reported for duty in September 2025. Credit: NASA/Josh Valcarcel

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

jsc2025e075922_alt (September 17, 2025) --- NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. The 10 candidates, pictured here at NASA’s Johnson Space Center in Houston are: U.S. Air Force Maj. Adam Fuhrmann, U.S. Air Force Maj. Cameron Jones, U.S. Army CW3 Ben Bailey, U.S. Navy Lt. Cmdr. Erin Overcash, Katherine Spies, Anna Menon, Yuri Kubo, Dr. Lauren Edgar, Rebecca Lawler, and Dr. Imelda Muller. Credit: NASA/Josh Valcarcel

jsc2025e075905_alt (September 17, 2025) --- NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. The 10 candidates, pictured here at NASA’s Johnson Space Center in Houston are: U.S. Army CW3 Ben Bailey, Anna Menon, Rebecca Lawler, Katherine Spies, U.S. Air Force Maj. Cameron Jones, Dr. Lauren Edgar, U.S. Navy Lt. Cmdr. Erin Overcash, Yuri Kubo, Dr. Imelda Muller, and U.S. Air Force Maj. Adam Fuhrmann. Credit: NASA/Josh Valcarcel

jsc2025e076333 (09/22/2025) --- NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. The 10 candidates, pictured here at NASA’s Johnson Space Center in Houston are: U.S. Navy Lt. Cmdr. Erin Overcash, Katherine Spies, U.S. Air Force Maj. Cameron Jones, U.S. Army CW3 Ben Bailey, U.S. Air Force Maj. Adam Fuhrmann, Rebecca Lawler, Dr. Imelda Muller, Yuri Kubo, Anna Menon, and Dr. Lauren Edgar. Photo Credit: NASA - James Blair