Space suit designer Oleg Gerasimenko shares some tips on the Sokol suit with NASA astronaut Rex Walheim during a fit check at the Zvezda facility on Monday, March 28, 2011, in Moscow. The crew of the final shuttle mission traveled to Moscow for a suit fit check of their Russian Soyuz suits that will be required in the event of an emergency. ( NASA Photo / Houston Chronicle, Smiley N. Pool )

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Keywords: discovery, exploration, final, launch, mission, nasa, news, shuttle, space, sts-135, training