Expedition 31 Soyuz Commander Gennady Padalka (bottom), NASA flight engineer Joe Acaba and flight engineer Sergei Revin (top) wave farewell from the base of their Soyuz rocket at the Baikonur ... more 
Expedition 31 Soyuz Commander Gennady Padalka (bottom), NASA flight engineer Joe Acaba and flight engineer Sergei Revin (top) wave farewell from the base of their Soyuz rocket at the Baikonur Cosmodrome in Kazakhstan shortly before launching to less 
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SPACE.com | Photo By NASA/Bill Ingalls
Tue, May 15, 2012 12:12 AM EDT