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 views2 months ago
YouTubeHISTORY
Are We Part Alien? | Ancient Aliens
25:21
Are We Part Alien? | Ancient Aliens
75.7K views5 months ago
YouTubeHISTORY
The Sumerian Object NASA Can't Explain (S20, E7) | Ancient Aliens | Full Episode
42:17
The Sumerian Object NASA Can't Explain (S20, E7) | Ancient Aliens | Full Episode
967.5K views1 month ago
YouTubeHISTORY
Egypt’s Greatest Secrets and Alien Theories | Ancient Aliens
30:56
Egypt’s Greatest Secrets and Alien Theories | Ancient Aliens
341.8K views4 months ago
YouTubeHISTORY
The most unsettling alien theory
30:26
The most unsettling alien theory
1 month ago
MSNIsaac Arthur
The NEW Complete Alien Timeline (1979 - 2025)
1:18:32
The NEW Complete Alien Timeline (1979 - 2025)
217.2K views9 months ago
YouTubeNerdist
32:32
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
1M views10 months ago
YouTubeHISTORY
49:42
ALIEN EARTH Episode 7 Breakdown | Every Easter Egg, Ending Explained, Eye Theories & Review
364.1K views1 year ago
YouTubeHeavy Spoilers
37:13
Have Aliens Been Visiting Earth for Millions of Years? | Ancient Aliens | History
7.3M viewsApr 3, 2025
YouTubeHISTORY
20:27
Humans From the Future | Ancient Aliens | History
2.1M viewsMay 8, 2025
YouTubeHISTORY
26:52
Mysteries That Span Civilizations and Time | Ancient Aliens
440K views4 months ago
YouTubeHISTORY
25:48
Dark Encounters: Reptilians and Hidden Beings | Ancient Aliens
308.9K views5 months ago
YouTubeHISTORY
20:20
The Truth Behind These Unexplained Phenomena | Ancient Aliens
204K views3 months ago
YouTubeHISTORY
28:46
Close Encounters with Terrifying Aliens | UFO Files
199.4K views5 months ago
YouTubeHISTORY
40:56
Big Alien Theory
110.8K views6 months ago
YouTubeIsaac Arthur
18:23
Unexplained Phenomena Across the American West | Ancient Aliens
224K views5 months ago
YouTubeHISTORY
29:52
Did Aliens Predict Humanity’s End? | Ancient Aliens | History
451.3K views10 months ago
YouTubeHISTORY
35:13
The Alien Origins of Human Civilization | Ancient Aliens
248.1K views7 months ago
YouTubeHISTORY
42:17
Extraterrestrial Moon Bases: Strange Evidence Explained | Ancient Aliens (S1, E11) | Full Episode
3.8M viewsJul 23, 2025
YouTubeHISTORY
1:09:50
Unsolved Alien Mysteries: from Alaska's Pyramid to the Freemasons | Ancient Aliens
3.4M viewsSep 1, 2025
YouTubeHISTORY
1:03:40
Alien Conspiracy: They Are Here
2.2K views4 months ago
YouTubeExtreme Mysteries
25:31
UFOs at Nuclear Sites? | Ancient Aliens
206.6K views6 months ago
YouTubeHISTORY
8:44
Alien: Earth Season 2 Just Found A Horror Worse Than The Xenomorph
15.4K views3 months ago
YouTubeScreenRant
1:30:54
Alien Contact: How Would Humanity React? | FULL DOCUMENTARY
697.7K viewsMar 9, 2025
YouTubeNaked Science
8:12
Wild Theories of Alien Bases on the Dark Side of the Moon
438.8K viewsJun 3, 2025
YouTubeJRE Clips
5:11
Egypt’s Eternal Pyramid Mystery (S1) | Ancient Aliens: Origins
43K views9 months ago
YouTubeHISTORY
20:43
Top 20 Alien Conspiracy Theories
95.6K viewsNov 14, 2024
YouTubeWatchMojo.com
23:35
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens | History
273.4K viewsAug 18, 2025
YouTubeHISTORY
8:09
ALIEN EARTH Episode 7 Trailer Breakdown | Easter Eggs, Hidden Details And Reaction
107.3K viewsSep 10, 2025
YouTubeHeavy Spoilers
See more
Static thumbnail place holder