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CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center in Florida, shuttle Discovery is ushered into the Vehicle Assembly Building (VAB) from Orbiter Processing Facility-3 during a move known as "rollover." Once inside the VAB, the shuttle will be joined to its solid rocket boosters and external fuel tank. Later, Discovery will "roll out" 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/Ben Cooper