Barry Eugene "Butch" Wilmore is a NASA astronaut and United States Navy test pilot. He has had two 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 most recently served as part of Expedition 41 to the International Space Station. Prior to being selected as a NASA astronaut in July 2000, Wilmore was an experienced Navy test pilot. He also participated in the development of T-45 Goshawk trainer jet.