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NASA's Unexplained Files

3 Seasons
S4 E7 5/9/19

Aliens in the Amazon

After Neil Armstrong's moonwalk, he led an expedition into the Amazon to find a legendary library that holds all knowledge of an advanced alien civilization. Experts ask if a close encounter on the moon's surface inspired Armstrong's mysterious quest.

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Seasons

Episode   1

Pluto's Evil Twin

Episode   2

The Black Hole Next Door

Episode   3

Aliens vs. Stalin at Area 51

Episode   7

Aliens in the Amazon