Including results for alien worlds documentary.
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Inside MUFON’s Search for UFO Truth (S19, E5) | Ancient Aliens | Full Episode
42:17
Inside MUFON’s Search for UFO Truth (S19, E5) | Ancient Aliens | F…
103.4K views3 weeks ago
YouTubeHISTORY
The Universe: EXPLORING VIOLENT ALIEN WORLDS *3 Hour Marathon* | History
2:56:34
The Universe: EXPLORING VIOLENT ALIEN WORLDS *3 Hour Marathon…
5.3M viewsSep 17, 2023
YouTubeHISTORY
Are Aliens Guiding Cosmic Impacts? (S19, E6) | Ancient Aliens | Full Episode
42:17
Are Aliens Guiding Cosmic Impacts? (S19, E6) | Ancient Alien…
209.4K views1 month ago
YouTubeHISTORY
The Global Threat (Full Episode) | UFOs: Investigating the Unknown
42:15
The Global Threat (Full Episode) | UFOs: Investigating the Unknown
6.8M viewsFeb 24, 2024
YouTubeNational Geographic
Chilling Evidence of ETs Among Us *Marathon* | Ancient Aliens
2:10:24
Chilling Evidence of ETs Among Us *Marathon* | Ancient Aliens
234.8K views1 month ago
YouTubeHISTORY
The Nearest Planets That Could Have Alien Life
52:36
The Nearest Planets That Could Have Alien Life
38.3K views3 weeks ago
YouTubeWonder
The Universe: Explore the Alien Worlds of Outer Space *3 Hour Marathon* | History
2:56:33
The Universe: Explore the Alien Worlds of Outer Space *3 Hour Ma…
5.3M viewsOct 15, 2023
YouTubeHISTORY
2:12:19
Extraterrestrial Signs We’ve Been Visited *2 Hour Marathon* | Ancien…
532.5K views2 months ago
YouTubeHISTORY
35:58
Legends of Strange Creatures | Ancient Aliens
242.5K views1 month ago
YouTubeHISTORY
2:56:09
Ancient Aliens: Extraterrestrial Legends & UFO Mysteries Reveale…
2.6M viewsSep 17, 2024
YouTubeHISTORY
34:51
David Childress Around the World | Ancient Aliens
218.6K views2 months ago
YouTubeHISTORY
2:07:00
Mysteries Beyond Earth and Time *Marathon* | Ancient Aliens | History
307.6K views5 months ago
YouTubeHISTORY
18:43
UFOs, Government Secrets & Hidden Knowledge | Ancient Aliens
249.7K views5 months ago
YouTubeHISTORY
50:02
Every Possible Outcome Of Humans Making Contact With Aliens
25.8K views4 months ago
YouTubeSpark
2:48:29
Secrets from Outer Space *Marathon* | Ancient Aliens | History
1.2M viewsMar 31, 2025
YouTubeHISTORY
1:00:57
Aliens, Yetis, UFOs, and Other Paranormal Phenomena | Expediti…
757.3K views4 months ago
YouTubeDiscovery
1:31:03
Evidence of Early Alien Contact with Earth | Ancient Aliens (S1, E99) | F…
3.3M viewsNov 16, 2024
YouTubeHISTORY
39:44
The Mystery of Earth’s Sacred Places | Ancient Aliens
105.9K views4 months ago
YouTubeHISTORY
42:17
New Discoveries Reveal Earth’s Lost Hominid Co-Existence (S11, …
678.6K views8 months ago
YouTubeHISTORY
24:58
Top 20 Alien Documentaries You HAVE to See
66K viewsMar 11, 2025
YouTubeWatchMojo.com
8:21
The Most Alien World in Our Solar System | Space's Deepest Secrets …
10.4K views9 months ago
YouTubeScience Channel
24:58
Top 20 Alien Documentaries You HAVE to See
Mar 11, 2025
MSNDailymotion
42:11
Earth's Unsolved Mysteries (S5, E4) | The UnXplained | Full Episode
335K views2 months ago
YouTubeHISTORY
1:19:08
Encounters that threatened America | UFOs: Top Secret Alien Files | Hi…
1.6M viewsSep 27, 2024
YouTubeHISTORY
1:30:54
Alien Contact: How Would Humanity React? | FULL DOCUMENTARY
686.7K viewsMar 9, 2025
YouTubeNaked Science
42:17
Were We Visited by Aliens Long Ago? Theories and Evidence (S11…
1.4M views9 months ago
YouTubeHISTORY
35:08
Gateways of the Gods | Ancient Aliens
155.2K views4 months ago
YouTubeHISTORY
0:45
Aliens found in the Ocean: Nordic Alien's Terrifying Plan | UFO Witne…
36.3K viewsApr 25, 2025
YouTubeDiscoveryChannelInd
48:48
Alien Worlds with David Aguilar | CfA
6.3K viewsMar 7, 2014
YouTubeHarvard University
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