CAPE CANAVERAL, Fla. - Space shuttle Atlantis rolls through the open doors of the Vehicle Assembly Building's high bay 3 at NASA's Kennedy Space Center in Florida after rolling back from Launch Pad 39A. In the VAB, Atlantis will await launch on its STS-125 mission to repair NASA's Hubble Space Telescope. First motion of Atlantis off the pad was at 6:48 a.m. EDT. The journey was expected to take about six hours. Atlantis' targeted launch on Oct. 14 was delayed when a system that transfers science data from the orbiting observatory to Earth malfunctioned on Sept. 27. The new target launch date is under review. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - In the Vehicle Assembly Building's high bay 3 at NASA's Kennedy Space Center in Florida, space shuttle Atlantis comes to rest after its six-hour journey from Launch Pad 39A. In the VAB, Atlantis will await launch on its STS-125 mission to repair NASA's Hubble Space Telescope. First motion of Atlantis off the pad was at 6:48 a.m. EDT. Atlantis' targeted launch on Oct. 14 was delayed when a system that transfers science data from the orbiting observatory to Earth malfunctioned on Sept. 27. The new target launch date is under review. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - In the Vehicle Assembly Building's high bay 3 at NASA's Kennedy Space Center in Florida, a worker closely observes space shuttle Atlantis as it rolls in after leaving Launch Pad 39A. In the VAB, Atlantis will await launch on its STS-125 mission to repair NASA's Hubble Space Telescope. First motion of Atlantis off the pad was at 6:48 a.m. EDT. Atlantis' targeted launch on Oct. 14 was delayed when a system that transfers science data from the orbiting observatory to Earth malfunctioned on Sept. 27. The new target launch date is under review. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - Viewed from above, space shuttle Atlantis arrives in the Vehicle Assembly Building's high bay 3 at NASA's Kennedy Space Center in Florida after rolling back from Launch Pad 39A. In the VAB, Atlantis will await launch on its STS-125 mission to repair NASA's Hubble Space Telescope. First motion of Atlantis off the pad was at 6:48 a.m. EDT. The journey was expected to take about six hours. Atlantis' targeted launch on Oct. 14 was delayed when a system that transfers science data from the orbiting observatory to Earth malfunctioned on Sept. 27. The new target launch date is under review. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - Space shuttle Atlantis rolls toward the open doors of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida after rolling back from Launch Pad 39A. In the VAB, Atlantis will await launch on its STS-125 mission to repair NASA's Hubble Space Telescope. First motion of Atlantis off the pad was at 6:48 a.m. EDT. The journey was expected to take about six hours. Atlantis' targeted launch on Oct. 14 was delayed when a system that transfers science data from the orbiting observatory to Earth malfunctioned on Sept. 27. The new target launch date is under review. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - Space Space shuttle Atlantis rolls through the open doors of the Vehicle Assembly Building's high bay 3 at NASA's Kennedy Space Center in Florida after rolling back from Launch Pad 39A. In the VAB, Atlantis will await launch on its STS-125 mission to repair NASA's Hubble Space Telescope. First motion of Atlantis off the pad was at 6:48 a.m. EDT. The journey was expected to take about six hours. Atlantis' targeted launch on Oct. 14 was delayed when a system that transfers science data from the orbiting observatory to Earth malfunctioned on Sept. 27. The new target launch date is under review. Photo credit: NASA/Kim Shiflett