CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, shuttle Discovery begins to back out of Orbiter Processing Facility-3 during a move called "rollover" to the nearby Vehicle Assembly Building (VAB). Once inside the VAB, the shuttle will be joined to its solid rocket boosters and external fuel tank. Later this month, Discovery is scheduled to "rollout" to Launch Pad 39A for its launch to the International Space Station on the STS-133 mission. Targeted to liftoff Nov. 1, Discovery will take the Permanent Multipurpose Module (PMM) packed with supplies and critical spare parts, as well as Robonaut 2 (R2) to the station. Photo credit: NASA/Jack Pfaller KSC-2010-4584
