ISS027-E-035296(20 May 2011) --- NASA astronaut Andrew Feustel, mission specialist, ingresses the airlock hatch on the International Space Station (ISS) at the completion of the STS-134 mission's first of four space walks. Astronauts Feustel and Greg Chamitoff (out of frame), fellow mission specialist, accomplished several tasks on the ISS.

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Photo credit: © NASA/piemags / Alamy / Afripics
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