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Astronauts going underground

ESA's CAVES training programme began its second phase last Friday as six astronauts ventured into the Sardinian caves in Italy that are their home this week. CAVES mimics elements of spaceflight to prepare ...

Sep 12, 2012
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A living desert underground

Hidden underneath the hilly grasslands studded with ocotillos and mesquite trees in southeastern Arizona lies a world shrouded in perpetual darkness: Kartchner Caverns, a limestone cave system renowned for ...

Nov 20, 2013
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