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December 6, 2011
Astronauts Jose Hernandez (left) and Tim Kopra, both STS-128 mission specialists, are pictured in the Quest airlock of the International Space Station as astronauts John "Danny" Olivas, mission specialist; and Nicole Stott, Expedition 20 flight engineer, prepare to exit the airlock to begin the mission's first session of extravehicular activity.

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