NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
ISS space walk. British astronaut Piers Sellers (born 1955) carrying out extravehicular activity (EVA, a space walk), at the International Space Station (ISS). He is part of a crew of seven that travelled to the ISS on the Space Shuttle Discovery to deliver supplies and carry out repairs. Here he is pulling himself along one of the ISS's truss sections. Photographed on 12 July 2006.
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