Space shuttle Atlantis rolls out from the Vehicle Assembly Building on a slow trek to launch pad 39A at the Kennedy Space Center, Florida, Tuesday, March 31, 2009. Atlantis mission to refurbish the Hubble Space Telescope was grounded six months ago by an electronics problem aboard the telescope. The launch is scheduled for May 12, 2009. Photo by Red Huber/Orlando Sentinel/MCT/ABACAPRESS.COM