The payload canister moves out of the Canister Rotation Facility at NASA's Kennedy Space Center heading for Launch Pad 39A.

The payload canister moves out of the Canister Rotation Facility at NASA's Kennedy Space Center in Florida heading for Launch Pad 39A. It carries a cargo of four carriers holding various equipment for the STS-125 mission aboard space shuttle Atlantis to service NASA’s Hubble Space Telescope. At the pad, the cargo will be moved into the Payload Changeout Room. The changeout room is the enclosed, environmentally controlled portion of the rotating service structure that supports cargo delivery to the pad and subsequent vertical installation into the shuttle’s payload bay. Launch of Atlantis is targeted for Oct. 10. Photo credit: NASA/Troy Cryder