Space shuttle Endeavour is rolled from Orbiter Processing Facility 2 to the Vehicle Assembly Building.

Space shuttle Endeavour is rolled from Orbiter Processing Facility 2 to the Vehicle Assembly Building at NASA's Kennedy Space Center, Fla. The first motion of the shuttle out of its hangar was at 6:56 a.m. EDT. In the VAB, Endeavour will be lifted into High Bay 1 and mated to the external fuel tank and solid rocket boosters already installed on the mobile launcher platform. Endeavour is scheduled to roll out to Launch Pad 39B in about a week. Endeavour will be prepared on the pad for liftoff in the unlikely event that a rescue mission is necessary following space shuttle Atlantis' launch on the STS-125 mission to service the Hubble Space Telescope. After Atlantis is cleared to land, Endeavour will move to Launch Pad 39A for its upcoming STS-127 mission to the International Space Station, targeted to launch in mid-June. Photo credit: NASA/Jim Grossmann