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  • Are we all Martians? Inside theory linking Earth to red planetadd to reading list  

    Posted on September 2, 2013 at 8:15 AM

    Updated Monday, Sep 2 at 1:34 PM

    (CBS) A new provocative theory among the scientific community is life on Earth actually began on Mars. Derrick Pitts, chief astronomer and planetarium director at Philadelphia's Franklin Institute, discusses the theory -- in its infancy -- with the "

    By CBS News
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