EUROPEAN SPACE AGENCY / NASA / SCIENCE PHOTO LIBRARY EUROPEAN SPACE AGENCY / NASA / SCIENCE PHOTO LIBRARY
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Tim Peake and ISS muscle experiment. British astronaut Tim Peake (born 1972) using the European Space Agency (ESA)'s muscle measurement machine MARES (Muscle Atrophy Research and Exercise System) on the International Space Station (ISS). Peake served as a European Space Agency (ESA) astronaut on board the ISS for 186 days between 15 December 2015 and 18 June 2016. He was part of Expedition 46 and Expedition 47 to the ISS. During his time on board the ISS, Peake performed several scientific experiments and wrote blogs, as part of his Principia mission for the ESA and the UK Space Agency. Photograph published on 29 April 2016.
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