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Ancient Aliens

Series 16 Episode 9: The UFO Pioneers

In the 20th century, pioneering scientists, journalists and investigators defied convention and began documenting UFOs; experts in the 21st century look for undeniable proof of extraterrestrial visitation.

Documentary / History / Paranormal
Original air date
Cast and crew
  • Robert ClotworthyNarrator
  • Giorgio Tsoukalos
  • Erich von Däniken
  • David Childress
  • William Henry
  • Linda Moulton Howe
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