NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
ISS spacewalk. Astronaut photograph of European Space Agency (ESA) astronaut Alexander Gerst (born 1976), Expedition 41 flight engineer, during an extravehicular activity (EVA) on the International Space Station (ISS). During this six-hour 13-minute spacewalk, Gerst and NASA astronaut Reid Wiseman (not seen) worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment. Photographed on 7th October 2014.
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