Space shuttle Endeavour is towed into the Orbiter Processing Facility at NASA's Kennedy Space Center in Florida. After landing in California to end the STS-126 mission, Endeavour returned to Kennedy on a piggyback flight atop a shuttle carrier aircraft. In the processing facility, Endeavour will begin preparations for its next mission, STS-127, targeted for May 2009. Image credit: NASA/Jack Pfaller Dec. 13, 2008
