Including results for alien worlds documentaries.
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The Evidence For Alien Theories *MARATHON* | Ancient Aliens
2:12:19
The Evidence For Alien Theories *MARATHON* | Ancient Aliens
112.3K views1 month ago
YouTubeHISTORY
Extraterrestrial Signs We’ve Been Visited *2 Hour Marathon* | Ancient Aliens
2:12:19
Extraterrestrial Signs We’ve Been Visited *2 Hour Marathon* | Ancient Aliens
661.8K views6 months ago
YouTubeHISTORY
UFO Truths Exposed | UFOs: Investigating the Unknown MEGA Episode | National Geographic
2:12:16
UFO Truths Exposed | UFOs: Investigating the Unknown MEGA Episode | National Geographic
1.4M views2 months ago
YouTubeNational Geographic
Could You Really Live on These Alien Worlds?
1:18:49
Could You Really Live on These Alien Worlds?
67.1K views1 month ago
YouTubeWhat If
Extraterrestrial Mysteries on the Ocean Floor | Ancient Aliens
33:52
Extraterrestrial Mysteries on the Ocean Floor | Ancient Aliens
1.1M views2 months ago
YouTubeHISTORY
The Mystery Hidden Under Antarctica | Ancient Aliens | Marathon
2:06:25
The Mystery Hidden Under Antarctica | Ancient Aliens | Marathon
1.7M views2 months ago
YouTubeHISTORY
Where did Nikola Tesla's Knowledge Come From? | Ancient Aliens
35:08
Where did Nikola Tesla's Knowledge Come From? | Ancient Aliens
453.7K views1 month ago
YouTubeHISTORY
24:09
The Truth About Alien Disclosure | Ancient Aliens
390.6K views3 months ago
YouTubeHISTORY
42:17
Are Aliens Guiding Cosmic Impacts? (S19, E6) | Ancient Aliens | Full Episode
228.1K views5 months ago
YouTubeHISTORY
24:58
Top 20 Alien Documentaries You HAVE to See
67.1K viewsMar 11, 2025
YouTubeWatchMojo.com
28:46
Close Encounters with Terrifying Aliens | UFO Files
199.4K views4 months ago
YouTubeHISTORY
1:00:57
Aliens, Yetis, UFOs, and Other Paranormal Phenomena | Expedition Files | Discovery
972.2K views8 months ago
YouTubeDiscovery
2:07:27
Forbidden Caves Inside Antarctic Pyramids *Marathon* | Ancient Aliens
746.6K views4 months ago
YouTubeHISTORY
44:43
Ancient Sites that Defy Explanation | Ancient Aliens | Compilation
671K views2 months ago
YouTubeHISTORY
21:55
Aliens Were Already Here | Ancient Aliens
390.5K views6 months ago
YouTubeHISTORY
24:46
Mysterious Abductions: Encounters Beyond Explanation | Ancient Aliens
350.2K views6 months ago
YouTubeHISTORY
23:17
Humanity’s Greatest Unexplained Mysteries | Ancient Aliens
353K views7 months ago
YouTubeHISTORY
28:37
The Evidence Says Yes | Ancient Aliens
201.7K views5 months ago
YouTubeHISTORY
18:23
Unexplained Phenomena Across the American West | Ancient Aliens
224K views5 months ago
YouTubeHISTORY
39:44
The Mystery of Earth’s Sacred Places | Ancient Aliens
108.4K views8 months ago
YouTubeHISTORY
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