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S134-E-009221 (25 May 2011) --- NASA astronauts Mark Kelly (foreground), STS-134 commander; and Greg Chamitoff, mission specialist, assist astronaut Andrew Feustel with the doffing of his Extravehicular Mobility Unit (EMU) spacesuit in the International Space Station?s Quest airlock as the mission?s third spacewalk draws to a close. Photo credit: NASA
