NASA turns to Mexican lake for clues to alien life

With cobalt waters harboring eerie, coral-like formations, this archipelago of lakes in Mexico's searing Chihuahuan desert has always had an other-worldly appearance.

Now top researchers at the U.S. National Aeronautics and Space Administration say the calcified clumps of primitive bacteria lurking in its pools could provide important clues in their search for extraterrestrial life.

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