S21·E4 The Top Ten Unexplained Technologies
Synopsis
Ancient Aliens is counting down ten of the most astonishing and unexplainable technologies in history. From mysterious golden orbs discovered in Mexico, to a sacred wooden box that could communicate with the heavens and an ancient tomb that is said to depict an astronaut. Might these sensational artifacts be evidence of otherworldly contact?
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Frequently Asked Questions
When did Season 21 Episode 4 of Ancient Aliens air?
Season 21, Episode 4 ('The Top Ten Unexplained Technologies') originally aired on February 28, 2025.
How long is Season 21 Episode 4 ('The Top Ten Unexplained Technologies')?
The runtime for this episode is approximately 42 minutes.
What happens in Ancient Aliens Season 21 Episode 4?
Ancient Aliens is counting down ten of the most astonishing and unexplainable technologies in history. From mysterious golden orbs discovered in Mexico, to a sacred wooden box that could communicate with the heavens and an ancient tomb that is said to depict an astronaut. Might these sensational art...
All Ancient Aliens episode ratings Season 21 Where to watch
Top-rated Ancient Aliens episodes
- S2E8 · Unexplained Structures ★ 9.2
- S2E3 · Underwater Worlds ★ 8.8
- S2E6 · Alien Tech ★ 8.6
- S2E4 · Underground Aliens ★ 8.6
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