Atlantis: Ready for Launch
The crew of space Shuttle Atlantis, from left, mission specialist Rex Walheim, commander Chris Ferguson, pilot Doug Hurley and mission specialist Sandy Mangus, greet NASA workers and members of the media as the shuttle makes it way from the Orbiter Processing Facility to the Vehicle Assembly Building to prepare for it's final launch at the Kennedy Space Center in Cape Canaveral, Fla., Tuesday, May 17, 2011. The final launch of Atlantis is targeted for mid-July. (AP Photo/John Raoux)