Space shuttle Atlantis
Ken Ham, Garrett Reisman, Michael Good, Tony Antonelli, Piers Sellers and Steve Bowen prepare to board the space shuttle Atlantis May 14, 2010, at the Kennedy Space Center in Cape Canaveral, Fla. Ken Ham is the commander; Garrett Reisman, Michael Good, Piers Sellers, and Steve Bowen are the mission specialists, and Tony Antonelli is the pilot. (U.S. Air Force photo/Senior Airman Chris Muncy)