European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, prepares for a session of the Energy Requirements for Long-Term Spaceflight (ENERGY) experiment in the Columbus laboratory of the International Space Station.
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Space
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NASA
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European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, prepares for a session of the Energy Requirements for Long-Term Spaceflight (ENERGY) experiment in the Columbus laboratory of the International Space Station.