Researchers believe there could be a connection between carvings in the Roswell Rock and crop circles in England in this clip from Season 9, Episode 7, "Alien Messages". #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://po.st/SubscribeToHistory Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check out exclusive HISTORY content: History Newsletter: http://po.st/HistoryNewsletter Website - http://po.st/HistoryWeb Facebook - http://po.st/HistoryFacebook Twitter - http://po.st/HistoryTwitter "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years. HISTORY®, now reaching more than 98 million homes, is the leading destination for...
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