Why haven’t we found aliens? A physicist shares the most popular theories. | Brian Cox
12:47
Why haven’t we found aliens? A physicist shares the most popular th…
2.8M viewsSep 29, 2023
YouTubeBig Think
The Afterlife: Myths vs. Facts | Ancient Aliens | History
21:57
The Afterlife: Myths vs. Facts | Ancient Aliens | History
349.2K views7 months ago
YouTubeHISTORY
Ancient Aliens: The TRUTH Behind the Origins of Life
18:32
Ancient Aliens: The TRUTH Behind the Origins of Life
479.1K viewsNov 28, 2024
YouTubeHISTORY
Top 20 Alien Conspiracy Theories
20:43
Top 20 Alien Conspiracy Theories
92.5K viewsNov 14, 2024
YouTubeWatchMojo.com
Cosmic Alien Mysteries | Space's Deepest Secrets | Science Channel
20:09
Cosmic Alien Mysteries | Space's Deepest Secrets | Science Channel
11.9K views3 months ago
YouTubeScience Channel
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 | H…
6.5M views10 months ago
YouTubeHISTORY
Humans From the Future | Ancient Aliens | History
20:27
Humans From the Future | Ancient Aliens | History
1.6M views9 months ago
YouTubeHISTORY
23:20
Linda Moulton Howe's BIGGEST Theories Revealed | Ancient Aliens | …
271.3K views9 months ago
YouTubeHISTORY
1:30:23
What the U.S. Military Knows About UFOs ft. Jeremy Corbell | Shane Smit…
986.2K views5 months ago
YouTubeVICE News
32:58
Secret Alien Codes: Messages from Beyond Decoded? | Ancient Aliens | H…
435.9K views6 months ago
YouTubeHISTORY
59:11
Ancient Aliens: TOP UFO MYSTERIES OF 2025 | Part 1
301.5K views2 months ago
YouTubeHISTORY
18:31
Ancient Aliens: Inside Area 51's UFO Secrets | History
5.8M viewsMay 9, 2024
YouTubeHISTORY
13:30
How archaeologists dismiss most ancient alien claims
4 weeks ago
MSNScience Unbound
17:50
Ancient Aliens: Shocking Evidence of TIME TRAVEL?! | History
961.4K viewsMay 30, 2024
YouTubeHISTORY
5:09
Alien and UFO Conspiracy Theory 2 - Area 51 and Reverse Engineering of …
3.1K viewsNov 4, 2024
YouTubeLAB 360
9:56
5 Spine-Chilling UFO & Alien Encounters Caught on Camera | Unde…
4.3K views3 months ago
YouTubeLAB 360
8:38
Alien: Earth — Theories That Actually Fit the Timeline
48.9K views5 months ago
YouTubeScreen Rant
20:41
Ancient Aliens: 5 SHOCKING Mysteries Beneath Polar Ice | History
4.3M viewsMar 21, 2024
YouTubeHISTORY
44:25
Experts Reveal What Really Happened (Full Episode) | Area 51: The CIA's Se…
8.8M viewsJun 23, 2024
YouTubeNational Geographic
3:45
Alien Mothership Approaching Earth—Scientist Predicts Date of Arri…
338.1K views6 months ago
YouTubeWION
16:27
Ancient Aliens: Unbelievable Extraterrestrial Encounters in Antarct…
550.2K viewsMar 28, 2024
YouTubeHISTORY
32:42
Top 30 Biggest Conspiracy Theories of All Time
215K views11 months ago
YouTubeWatchMojo.com
23:30
All The Real Science of 3I/ATLAS. The Ultimate Guide
506.3K views4 months ago
YouTubeFraser Cain
31:13
Alien: Earth Episode 4 BREAKDOWN! - Easter Eggs and Hidden Details You …
186.6K views5 months ago
YouTubeScreenCrush
2:25:14
Alien Agenda: Planet Earth - The Cosmic Conspiracy
1.7M viewsMar 4, 2023
YouTubeExtreme Mysteries
2:57
How Area 51 became the center of alien conspiracy theories
7.6M viewsJul 21, 2017
YouTubeBusiness Insider
2:16
The Alien Perspective - Official Trailer (2025) Documentary
153K viewsDec 20, 2024
YouTubeIGN Movie Trailers
1:25:43
Alien Conspiracy They Are Here - Alien Reptilian Legacy
38.1K viewsAug 3, 2024
YouTubeExtreme Mysteries
4:02
Harvard Scientist Says Alien Mothership Is Real | 3I/ATLAS Explai…
30.8K views5 months ago
YouTubeWION
6:38
Antarctica's Hidden Aliens: What the Government Doesn’t Want You to Kn…
24.8K viewsMay 29, 2024
YouTubeLAB 360
See more videos
Static thumbnail place holder