Barry Eugene "Butch" Wilmore is a retired NASA astronaut and a decorated United States Navy test pilot. He is a veteran of three spaceflights, having spent a total of 464 days off Earth and 32 hours outside of a spacecraft. Wilmore's extensive career includes serving as pilot with five other crew members on Space Shuttle Atlantis for the STS-129 mission in November 2009, which involved an 11-day journey to the International Space Station.