![Ancient Aliens: Extraterrestrial Communication and Crop Circles (S1, E17) | Full Episode Ancient Aliens: Extraterrestrial Communication and Crop Circles (S1, E17) | Full Episode](https://i.ytimg.com/vi/TGT1DkpusuA/maxresdefault.jpg)
More than 10,000 crop circles have been reported worldwide, on nearly every continent on earth. See more in Season 1, Episode 17, "Circles, Rituals and Shamans." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel ...
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