Barry Eugene "
Butch"
Wilmore is an American NASA astronaut and United States Navy test pilot. He has had three spaceflights, the first of which was an 11-day Space Shuttle mission in November 2009, to the International Space Station. Wilmore was designated as pilot with five other crew members on Space Shuttle
Atlantis for the mission STS-129. He served as part of Expedition 41 to the International Space Station, and on June 5, 2024, returned to the ISS on the Boeing Crew Flight Test, the first crewed mission of the Boeing Starliner. On March 18, 2025, he returned to Earth on the SpaceX Dragon capsule with the other crew members of Crew-9. The crew that replaced the Boeing Crew Flight Test astronauts aboard the ISS arrived on March 16.