STS-125 crew members get ready to affix the mission logo to the entrance into space shuttle Atlantis.

Inside the White Room on Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-125 crew members get ready to affix the mission logo to the entrance into space shuttle Atlantis. Clockwise from left front are Pilot Gregory C. Johnson, Mission Specialists Michael Good and Megan McArthur, Commander Scott Altman, and Mission Specialists Mike Massimino and John Grunsfeld. Space shuttle Atlantis' 11-day flight is targeted for launch May 12 and will include five spacewalks to 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/Cory Huston