What if life on Earth began in outer space? See more in this special from Ancient Aliens, Season 1, Episode 99.

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

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Chapters:
0:00 The Ancient Astronaut Theory
12:48 Nazca and Ancient Airstrips
22:21 Extraterrestrials in Religious Texts
46:08 Advanced Ancient Technology

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Evidence of Early Alien Contact with Earth | Ancient Aliens (S1, E99) | Full Episode | History
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