Alexander Gerst is a European Space Agency (ESA) astronaut. Between May and November 2014, Alexander spent six months on the International Space Station for ESA’s Blue Dot mission. He is returning to the ISS between May and December 2018, fulfilling the role of Commander for Expedition 57. Alexander is a geophysicist and a volcanologist. *
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#internationalspacestation – by @space_time_official on Instagram
