America's Book of Secrets: Ancient Astronaut Cover Up (S2, E1) | Full Episode | History
Watch new episodes of America’s Book of Secrets: Special Edition, premiering Tuesday, 8/11 at 9/8c.
The notion of a universe inhabited by aliens can be found just about everywhere in American popular culture. But could mankind really have been visited by aliens from other worlds? Learn more in Season 2, Episode 1, “The Ancient Astronaut Cover-Up”. #AmericasBookofSecrets
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