NASA's Phoenix Mars Lander may have found water ice on the red planet, but it still has a lot of work left to do to answer the question that has been on scientists' minds for decades: Has Mars ever been capable of harboring life?
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See also:
Mars Express Acquires Sharpest Images Of Martian Moon Phobos
Mother Earth Naked: A Modern Masterpiece
The Amazing Quantum World Of Ultra Cold Matter
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