Elon Musk's plan to colonize Mars has one big problem, according to astronaut Buzz Aldrin
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Elon Musk's plan to colonize Mars has one big problem, according to astronaut Buzz Aldrin
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Elon Musk's plan to colonize Mars has one big problem, according to astronaut Buzz Aldrin

Humans should have a strategy for living there once they arrive, argues the Apollo 11 astronaut.
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Wed, Mar 15 20171:04 PM EDT