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Ancient Aliens S21E5 — The Top Ten Secret Projects

7.1

Ancient Aliens•Season 21•Episode 5

The Top Ten Secret Projects

7.1/10 · 35 votesMar 7, 202560 min

Ranked #17 of 17 in Season 21•−0.7 vs season avg

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?

Previous episodeE4 · The Top Ten Unexplained Technologies Next episodeE6 · The Top Ten Mysterious Mountains

Seasons22

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Season 21 Episodes17

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Cast16

Robert Clotworthy

Robert Clotworthy

Narrator (voice)

Giorgio A. Tsoukalos

Giorgio A. Tsoukalos

Self

Ariel Bar Tzadok

Ariel Bar Tzadok

Self

Jonathan Young

Jonathan Young

Self

David Childress

David Childress

Self

Erich von Däniken

Erich von Däniken

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Linda Moulton Howe

Linda Moulton Howe

Self

David Wilcock

David Wilcock

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George Noory

George Noory

Self

Philip Coppens

Philip Coppens

Self

Nick Pope

Nick Pope

Self

Mike Bara

Mike Bara

Self

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Episode Summary

"The Top Ten Secret Projects" is episode 5 of Ancient Aliens season 21. It scored 7.1/10 from 35 votes, ranking #17 of 17 episodes this season (season average 7.8). It aired on March 7, 2025.

Next: E6 · The Top Ten Mysterious Mountains Best of Season 21