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KSC-2010-5454
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CAPE CANAVERAL, Fla. -- On Launch Pad 39A, technicians prepare to move the pad's rotating service structure away from space shuttle Discovery as the sun sets over NASA's Kennedy Space Center in Florida. The structure provides weather protection and access to the shuttle while it awaits lift off on the pad. RSS "rollback," as it's called, is a significant milestone in the launch countdown. Launch of Discovery on the STS-133 mission to the International Space Station is set for 3:29 p.m.
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Credit lineKSC-2010-5454. NASA/KSC, 2010-11-03. Public domain. ID: KSC-2010-5454.