Episodes
S21·E20 Episode 20S21·E19 Episode 19S21·E18 Episode 18S21·E1 The Top Ten Extraordinary Discoveries7 Feb 2025 · 42mS21·E2 The Top Ten Mysterious Monoliths14 Feb 2025 · 42mS21·E3 The Top Ten UFO Crashes21 Feb 2025 · 42mS21·E4 The Top Ten Unexplained Technologies28 Feb 2025 · 42mS21·E5 The Top Ten Secret Projects7 Mar 2025 · 1h 0mS21·E6 The Top Ten Mysterious Mountains14 Mar 2025 · 1h 0mS21·E7 Mysteries of the Aztecs21 Mar 2025 · 1h 0mS21·E8 The Glowing Orb Phenomenon28 Mar 2025 · 1h 0mS21·E9 The Legacy of J. Allen Hynek29 Aug 2025 · 1h 0mS21·E10 The Volcano Factor5 Sept 2025 · 1h 0mS21·E11 The Birdman Mystery12 Sept 2025 · 1h 0mS21·E12 The Abduction Files19 Sept 2025 · 1h 0mS21·E13 The Giants2 Oct 2025 · 1h 0mS21·E14 Aliens In Our Midst9 Oct 2025 · 1h 0mS21·E15 Britain's UFO Files16 Oct 2025 · 1h 0mS21·E16 Mysteries Of The Norse Gods23 Oct 2025 · 1h 0mS21·E17 Secrets of Japan6 Nov 2025 · 1h 0m
Where to watch Ancient Aliens
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