Nasa

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This 1970 image provided by NASA shows Apollo 14 astronauts Alan Shepard, Edgar Mitchell and Stuart Roost and an unidentified man training with a Modularized Equipment Transporter on the Big Island of Hawaii. Before many Apollo astronauts went to the moon, they came to Hawaii to train on the Big Island’s lunar landscapes. Now, decades-old photos are surfacing of astronauts scooping up Hawaii’s soil and riding across volcanic fields in a “moon buggy” vehicle. (AP Photo/NASA)

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This Dec. 1970 image provided by NASA shows Apollo 15 commander,Dave Scott and lunar module pilot Jim Irwin training on the Big Island, Hawaii. Before many Apollo astronauts went to the moon, they came to Hawaii to train on the Big Island’s lunar landscapes. Now, decades-old photos are surfacing of astronauts scooping up Hawaii’s soil and riding across volcanic fields in a “moon buggy” vehicle.(AP Photo/NASA)

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This Dec. 1970 image provided by NASA shows Apollo 15 astronauts training on the Big Island of Hawaii. Before many Apollo astronauts went to the moon, they came to Hawaii to train on the Big Island’s lunar landscapes. Now, decades-old photos are surfacing of astronauts scooping up Hawaii’s soil and riding across volcanic fields in a “moon buggy” vehicle. (AP Photo/NASA)

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This 1971 image provided by NASA shows Apollo 17 astronauts, Harrison "Jack" Schmitt, left, and an unidentified man, training with the lunar roving vehicle on the Big Island of Hawaii. Before many Apollo astronauts went to the moon, they came to Hawaii to train on the Big Island’s lunar landscapes. Now, decades-old photos are surfacing of astronauts scooping up Hawaii’s soil and riding across volcanic fields in a “moon buggy” vehicle. (AP Photo/NASA)

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European Space Agency's astronaut Alexander Gerst, left, Russian cosmonaut Maxim Suraev, center, and NASA astronaut Reid Wiseman, crew members of the mission to the International Space Station, ISS, gesture prior the launch of Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Sergei Ilnitsky, Pool)

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European Space Agency's astronaut Alexander Gerst, left, Russian cosmonaut Maxim Suraev, center, and NASA astronaut Reid Wiseman, crew members of the latest mission to the International Space Station, ISS, walk to a bus from a hotel, prior to the launch of Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Dmitry Lovetsky)

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NASA astronaut Reid Wiseman, crew members of the mission to the International Space Station, ISS, gestures prior to the launch of the Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Dmitry Lovetsky)

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European Space Agency's astronaut Alexander Gerst, left, Russian cosmonaut Maxim Suraev, center, and NASA astronaut Reid Wiseman, crew members of the mission to the International Space Station, ISS, report to members of the State Committee prior the launch of Soyuz-FG rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, Wednesday, May 28, 2014. (AP Photo/Kiril Kudryavtsev, Pool)