On Launch Pad 39A at NASA's Kennedy Space Center the payload canister arrives in front of the rotating service structure.

On Launch Pad 39A at NASA's Kennedy Space Center in Florida, the payload canister arrives in front of the rotating service structure. The canister will be lifted into the payload changeout room where its cargo of Hubble Space Telescope equipment will be deposited. The payload later will be transferred to the payload bay on space shuttle Atlantis, at right. Atlantis' 11-day STS-125 mission to service Hubble is targeted for launch May 12. The flight will include five spacewalks in which astronauts will refurbish and upgrade the telescope with state-of-the-art science instruments. As a result, Hubble's capabilities will be expanded and its operational lifespan extended through at least 2014. Photo credit: NASA/Kim Shiflett