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Ancient AliensProbes have been sending information about Mars back to scientists for nearly 40 years. Photographs of the planet reveal mysteries that could mean life on Mars.

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Now PlayingAncient AliensProbes have been sending information about Mars back to scientists for nearly 40 years. Photographs of the planet reveal mysteries that could mean life on Mars.0Ancient AliensArcheologists uncover ancient tombs filled with strange items and writings; remarkable similarities found at these sites cause theorists to believe that some of these technically advanced tombs were designed with the help of extraterrestrials.