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Ancient Aliens · S21 E5

The Top Ten Secret Projects

2025-03-07 · 60 min

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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Season 21 Episodes

  • E1The Top Ten Extraordinary Discoveries
  • E2The Top Ten Mysterious Monoliths
  • E3The Top Ten UFO Crashes
  • E4The Top Ten Unexplained Technologies
  • E5The Top Ten Secret Projects
  • E6The Top Ten Mysterious Mountains
  • E7Mysteries of the Aztecs
  • E8The Glowing Orb Phenomenon
  • E9The Legacy of J. Allen Hynek
  • E10The Volcano Factor
  • E11The Birdman Mystery
  • E12The Abduction Files
  • E13The Giants
  • E14Aliens In Our Midst
  • E15Britain's UFO Files
  • E16Mysteries Of The Norse Gods
  • E17Secrets of Japan
  • E18Episode 18
  • E19Episode 19
  • E20Episode 20