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Ancient Aliens

HistoryDocumentary, Mystery · 22 seasons

7.1TMDB

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Season 21

42mE1The Top Ten Extraordinary DiscoveriesFri, Feb 7 · ★ 8.0
42mE2The Top Ten Mysterious MonolithsFri, Feb 14 · ★ 8.0
42mE3The Top Ten UFO CrashesFri, Feb 21 · ★ 8.5
42mE4The Top Ten Unexplained TechnologiesFri, Feb 28 · ★ 8.0
60mE5The Top Ten Secret ProjectsFri, Mar 7 · ★ 8.0
60mE6The Top Ten Mysterious MountainsFri, Mar 14 · ★ 8.0
60mE7Mysteries of the AztecsFri, Mar 21 · ★ 8.5
60mE8The Glowing Orb PhenomenonFri, Mar 28 · ★ 8.5
60mE9The Legacy of J. Allen HynekFri, Aug 29 · ★ 8.5
60mE10The Volcano FactorFri, Sep 5 · ★ 8.5
60mE11The Birdman MysteryFri, Sep 12 · ★ 8.5
60mE12The Abduction FilesFri, Sep 19 · ★ 8.5
60mE13The GiantsThu, Oct 2 · ★ 8.5
60mE14Aliens in Our MidstThu, Oct 9 · ★ 8.5
60mE15Britain's UFO FilesThu, Oct 16 · ★ 8.5
60mE16Mysteries of the Norse GodsThu, Oct 23 · ★ 7.0
60mE17Secrets of JapanThu, Nov 6 · ★ 8.5

Questions

Where can I watch Ancient Aliens?

Ancient Aliens streams on Netflix, Disney Plus, Amazon Prime Video, Hulu, Philo and Pure Flix.

How many episodes are in Season 21?

Season 21 has 17 episodes.

Episode roomAncient Aliens S21 E5
Still 1 from The Top Ten Secret Projects

Ancient Aliens · Season 21 · Episode 5

The Top Ten Secret Projects

Friday, March 7 · 60 min · ★ 8.0 on TMDB

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Ancient Aliens is counting down ten of history's most compelling and covert projects that study the UFO phenomenon. From clandestine government organizations to agents that silence UFO witnesses and secret programs to reverse-engineer alien technology. Are these mysterious projects evidence of contact with extraterrestrials?

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