Including results for alien theory 2019.
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What NASA Knows About Mars | Ancient Aliens
41:19
What NASA Knows About Mars | Ancient Aliens
551.5K views4 months ago
YouTubeHISTORY
Inside the Mystery of the Greys | Ancient Aliens
48:49
Inside the Mystery of the Greys | Ancient Aliens
1.5M views4 months ago
YouTubeHISTORY
The Truth Behind These Unexplained Phenomena | Ancient Aliens
20:20
The Truth Behind These Unexplained Phenomena | Ancient Aliens
162.9K views1 month ago
YouTubeHISTORY
Are Humans Actually Aliens? The Shocking Theory Explained (S1) | Ancient Aliens
8:28
Are Humans Actually Aliens? The Shocking Theory Explained (S1) | Ancient Aliens
95.7K views1 month ago
YouTubeHISTORY
Are We Part Alien? | Ancient Aliens
25:21
Are We Part Alien? | Ancient Aliens
72.1K views2 months ago
YouTubeHISTORY
Top 20 conspiracy theories about aliens
19:27
Top 20 conspiracy theories about aliens
8.4K viewsApr 12, 2025
YouTubeWatchMojo Deutschland
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
7.2M viewsApr 3, 2025
YouTubeHISTORY
32:32
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
1M views7 months ago
YouTubeHISTORY
23:35
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens | History
272.8K views10 months ago
YouTubeHISTORY
20:43
Top 20 Alien Conspiracy Theories
94.6K viewsNov 14, 2024
YouTubeWatchMojo.com
31:07
The ancient alien theory sounded possible - until the missing evidence became impossible to ignore
1 week ago
MSNIsaac Arthur
40:56
Big Alien Theory
89.8K views4 months ago
YouTubeIsaac Arthur
23:20
Linda Moulton Howe's BIGGEST Theories Revealed | Ancient Aliens | History
329.3K viewsMay 1, 2025
YouTubeHISTORY
59:11
Ancient Aliens: TOP UFO MYSTERIES OF 2025 | Part 1
412.7K views6 months ago
YouTubeHISTORY
24:23
Are the Greys Already Among Us? Alien Hybrids & Robots Revealed | Ancient Aliens | History
694.1K views10 months ago
YouTubeHISTORY
1:03:40
Alien Conspiracy: They Are Here
9 views1 month ago
YouTubeExtreme Mysteries
8:38
Alien: Earth — Theories That Actually Fit the Timeline
49.2K views10 months ago
YouTubeScreenRant
35:30
What Are They Hiding? Alien Genetics & Skull Mysteries | Ancient Aliens | History
312.9K views9 months ago
YouTubeHISTORY
21:57
The Afterlife: Myths vs. Facts | Ancient Aliens | History
416.8K views11 months ago
YouTubeHISTORY
13:20
10 Alien Species Believed to Be Visiting Earth
122.4K views1 year ago
YouTubeWatchMojo.com
50:46
Uncovering Alien Conspiracies | The Proof Is Out There | History
180.4K viewsMay 9, 2025
YouTubeHISTORY
1:04:21
Top 40 Horror Movie Theories That Turned Out to Be True and 10 That Really Didn't
206.2K views9 months ago
YouTubeWatchMojo.com
21:52
Odin’s Otherworldly Origins | Ancient Aliens
189.4K views3 months ago
YouTubeHISTORY
1:03
Alien: Romulus | Teaser Trailer
22.3M viewsMar 20, 2024
YouTube20th Century Studios
34:00
Inside Look At Area 51 *New Theories Revealed!* | Ancient Aliens | History
10.3M viewsApr 22, 2025
YouTubeHISTORY
1:30:54
Alien Contact: How Would Humanity React? | FULL DOCUMENTARY
692.6K viewsMar 9, 2025
YouTubeNaked Science
8:12
Wild Theories of Alien Bases on the Dark Side of the Moon
420.7K viewsJun 3, 2025
YouTubeJRE Clips
1:47
Investigation Alien | Official Trailer | Netflix
1.7M viewsOct 11, 2024
YouTubeNetflix
2:16
The Alien Perspective - Official Trailer
90.6K viewsJan 2, 2025
YouTubeIGN
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