Including results for alien theory monster.
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Most CHILLING Alien Theories *MARATHON* | Ancient Aliens
3:43:03
Most CHILLING Alien Theories *MARATHON* | Ancient Aliens
1M views7 months ago
YouTubeHISTORY
The Extraterrestrial Genetic Theory | Ancient Aliens
42:26
The Extraterrestrial Genetic Theory | Ancient Aliens
87.4K views1 month ago
YouTubeHISTORY
Did a Space Virus Change Human DNA? *Marathon* | Ancient Aliens
2:08:19
Did a Space Virus Change Human DNA? *Marathon* | Ancient Aliens
39.2K views2 months ago
YouTubeHISTORY
2025’s Biggest Alien Discoveries (Part 2) | Ancient Aliens
1:04:06
2025’s Biggest Alien Discoveries (Part 2) | Ancient Aliens
1.3M views8 months ago
YouTubeHISTORY
The Truth Behind These Unexplained Phenomena | Ancient Aliens
20:20
The Truth Behind These Unexplained Phenomena | Ancient Aliens
204K views3 months ago
YouTubeHISTORY
The most unsettling alien theory
30:26
The most unsettling alien theory
1 month ago
MSNIsaac Arthur
Have Aliens Been Visiting Earth for Millions of Years? | Ancient Aliens | History
37:13
Have Aliens Been Visiting Earth for Millions of Years? | Ancient Aliens | History
7.3M viewsApr 3, 2025
YouTubeHISTORY
42:17
Extraterrestrial Moon Bases: Strange Evidence Explained | Ancient Aliens (S1, E11) | Full Episode
3.8M viewsJul 23, 2025
YouTubeHISTORY
48:49
Inside the Mystery of the Greys | Ancient Aliens
1.6M views7 months ago
YouTubeHISTORY
32:32
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
1M views10 months ago
YouTubeHISTORY
31:07
The ancient alien theory sounded possible - until the missing evidence became impossible to ignore
4 weeks ago
MSNIsaac Arthur
23:20
Linda Moulton Howe's BIGGEST Theories Revealed | Ancient Aliens | History
354.8K viewsMay 1, 2025
YouTubeHISTORY
59:11
Ancient Aliens: TOP UFO MYSTERIES OF 2025 | Part 1
421.2K views9 months ago
YouTubeHISTORY
28:46
Close Encounters with Terrifying Aliens | UFO Files
199.4K views4 months ago
YouTubeHISTORY
13:20
10 Alien Species Believed to Be Visiting Earth
125.8K viewsJun 25, 2025
YouTubeWatchMojo.com
6:07
Ancient Aliens: The Shocking Theory Behind the Gods (S1)
26.7K views3 months ago
YouTubeHISTORY
30:56
Egypt’s Greatest Secrets and Alien Theories | Ancient Aliens
299.1K views3 months ago
YouTubeHISTORY
41:42
10 Strange Creatures Science Still Can't Explain | Ancient Aliens (S20, E2) | Full Episode
71K views2 months ago
YouTubeHISTORY
23:35
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens | History
273.4K viewsAug 18, 2025
YouTubeHISTORY
8:44
Alien: Earth Season 2 Just Found A Horror Worse Than The Xenomorph
15.4K views2 months ago
YouTubeScreenRant
8:38
Alien: Earth — Theories That Actually Fit the Timeline
49.4K viewsAug 26, 2025
YouTubeScreenRant
52:23
Mysteries on Mars | NASA's Unexplained Files | Science Channel
261.8K views10 months ago
YouTubeScience Channel
1:04:21
Top 40 Horror Movie Theories That Turned Out to Be True and 10 That Really Didn't
217.7K views11 months ago
YouTubeWatchMojo.com
21:08
The Most Mysterious Theories in Mathematics | Ancient Aliens | History
719.6K viewsMar 6, 2025
YouTubeHISTORY
33:04
Outer Space’s Most Baffling Mysteries | Ancient Aliens | History
833.3K viewsMar 4, 2025
YouTubeHISTORY
8:12
Wild Theories of Alien Bases on the Dark Side of the Moon
438.8K viewsJun 3, 2025
YouTubeJRE Clips
35:40
THE BEST NEW MONSTER & ALIEN MOVIES 2025 (Trailers)
386.8K viewsMay 23, 2025
YouTubeKinoCheck.com
20:43
Top 20 Alien Conspiracy Theories
95.6K viewsNov 14, 2024
YouTubeWatchMojo.com
3:39
Alien: Every Xenomorph Stage Explained
4.5K viewsAug 17, 2025
YouTubeScreenRant
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