"What are seven NASA Explorer School teachers doing in the Atacama desert in Chile? They are studying side-by-side with NASA scientists who search for life in extreme environments, closely approximating what they expect to find on other planets. Why the Atacama -- an inhospitable, seemingly lifeless, sun drenched spot that is probably the driest place on Earth? This natural environment on Earth poses some of the same challenges for human explorers as would a seemingly lifeless planet."
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