Some random person stuck in a cave? Nope: this is one of the European Space Agency's astronauts training for life in harsh conditions. Scrabbling through Sardinian caves, they collect scientific data and test equipment and protocols like they could, some day, on an alien world. [ESA]
via Gizmodo http://ift.tt/1mMeKi8 http://ift.tt/1iLXvOA
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