Ancient Aliens: Top 3 Conspiracies of Season 8 | History

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  • Published on:  Thursday, January 14, 2016
  • Take a look at the most fascinating conspiracies from Season 8, including communication via crop circle and the Hollow Earth, in this web exclusive.

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    Ancient Aliens
    Season 8
    Episode 22
    The Forbidden Zones

    "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

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