Endeavour is lowered into High Bay 1 toward the mobile launcher platform for attachment to the external tank and solid rocket boosters installed on the platform.

In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, space shuttle Endeavour is lowered into High Bay 1 toward the mobile launcher platform for attachment to the external tank and solid rocket boosters already installed on the platform. Endeavour is scheduled to roll out to Launch Pad 39B on April 17. 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/Troy Cryder