Most CHILLING Alien Theories *MARATHON* | Ancient Aliens
3:43:03
YouTubeHISTORY
Most CHILLING Alien Theories *MARATHON* | Ancient Aliens
This marathon explores the most chilling Ancient Aliens theories, from close encounters with extraterrestrial beings to shocking claims that aliens may be connected to the undead and humanity’s darkest mysteries. See more in this Ancient Aliens marathon. Watch new episodes New Episodes Thursdays at 9/8c and stay up to date on all of your ...
689.2K views5 months ago
Alien Theory Best Episodes
Earthen Echoes of Alien Technology | Ancient Aliens
39:53
Earthen Echoes of Alien Technology | Ancient Aliens
YouTubeHISTORY
192.7K views1 week ago
Are the Gods Really Returning? *Marathon* | Ancient Aliens
2:56:25
Are the Gods Really Returning? *Marathon* | Ancient Aliens
YouTubeHISTORY
768.2K views5 months ago
The Alien Code (S1, E10) | In Search of Aliens | Full Episode
42:19
The Alien Code (S1, E10) | In Search of Aliens | Full Episode
YouTubeHISTORY
42.7K views4 months ago
Top videos
Aliens, spaceships and President Trump: The UFO disclosure movement takes center stage
7:37
Aliens, spaceships and President Trump: The UFO disclosure movement takes center stage
YouTubeScripps News
19.8K views1 week ago
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
YouTubeHISTORY
7.2M viewsApr 3, 2025
The Truth Behind These Unexplained Phenomena | Ancient Aliens
20:20
The Truth Behind These Unexplained Phenomena | Ancient Aliens
YouTubeHISTORY
187.3K views1 month ago
Extraterrestrial Life Forms
Exploring the Unknown | Alien Life Forms | Full Sci-Fi Documentary | Free Movie
1:10:11
Exploring the Unknown | Alien Life Forms | Full Sci-Fi Documentary | Free Movie
YouTubeV Movies
3.1K views11 months ago
UFO Whistleblower David Grusch Makes Bombshell Revelation about Sentient Alien Plasmoid Life
10:25
UFO Whistleblower David Grusch Makes Bombshell Revelation about Sentient Alien Plasmoid Life
YouTubeLAB 360
14.5K views3 weeks ago
Cosmic Megafauna - Could Giant Alien Life Forms Exist?
41:04
Cosmic Megafauna - Could Giant Alien Life Forms Exist?
YouTubeIsaac Arthur
331.2K viewsJun 26, 2025
Aliens, spaceships and President Trump: The UFO disclosure movement takes center stage
7:37
Aliens, spaceships and President Trump: The UFO disclosure movement takes center stage
19.8K views1 week ago
YouTubeScripps News
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
The Truth Behind These Unexplained Phenomena | Ancient Aliens
20:20
The Truth Behind These Unexplained Phenomena | Ancient Aliens
187.3K views1 month ago
YouTubeHISTORY
Are the Greys Already Among Us? Alien Hybrids & Robots Revealed | Ancient Aliens | History
24:23
Are the Greys Already Among Us? Alien Hybrids & Robots Revealed | Ancient Aliens | History
696.2K views11 months ago
YouTubeHISTORY
The Alien Origins of Human Civilization | Ancient Aliens
35:13
The Alien Origins of Human Civilization | Ancient Aliens
203.6K views5 months ago
YouTubeHISTORY
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
32:32
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
1M views8 months ago
YouTubeHISTORY
Outer Space’s Most Baffling Mysteries | Ancient Aliens | History
33:04
Outer Space’s Most Baffling Mysteries | Ancient Aliens | History
821.7K viewsMar 4, 2025
YouTubeHISTORY
1:30:54
Alien Contact: How Would Humanity React? | FULL DOCUMENTARY
693.9K viewsMar 9, 2025
YouTubeNaked Science
20:43
Top 20 Alien Conspiracy Theories
95K viewsNov 14, 2024
YouTubeWatchMojo.com
23:35
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens | History
273.4K views10 months ago
YouTubeHISTORY
28:46
Close Encounters with Terrifying Aliens | UFO Files
157.7K views3 months ago
YouTubeHISTORY
8:38
Alien: Earth — Theories That Actually Fit the Timeline
49.3K views10 months ago
YouTubeScreenRant
59:11
Ancient Aliens: TOP UFO MYSTERIES OF 2025 | Part 1
413.2K views7 months ago
YouTubeHISTORY
44:02
Des Aliens Métamorphes ? ? OVNI enquêtes secrètes
124.8K viewsJun 29, 2025
YouTubeEnquêtes Paranormales
44:14
Alien signal detected: the encounter is approaching! Extraterrestrial Encounters
62.5K views6 months ago
YouTubeEnquêtes Paranormales
3:30:10
UFO's: Investigating the Unknown MEGA EPISODE | Secret Programs and Close Encounters | Nat Geo
7.9M viewsOct 5, 2024
YouTubeNational Geographic
43:52
Enlèvement extraterrestre : l’histoire terrifiante de Matthew Reid | Alien Mysteries
242.2K views7 months ago
YouTubeEnquêtes Paranormales
15:29
Find in video from 07:53Alien
An Exobiologist Analyzes Aliens in Movies (Prometheus, War of the …
412.8K viewsAug 21, 2024
YouTubeAlloCiné
2:16
The Alien Perspective - Official Trailer (2025) Documentary
156K viewsDec 20, 2024
YouTubeIGN Movie Trailers
1:06:43
Alien Origins | Aliens On Earth: The True Story Of Human's Origin | Full Sci-Fi Movie | Free Movie
4.4K views9 months ago
YouTubeV Movies
1:03
Alien: Romulus | Teaser Trailer
22.3M viewsMar 20, 2024
YouTube20th Century Studios
1:47
Investigation Alien | Official Trailer | Netflix
1.7M viewsOct 11, 2024
YouTubeNetflix
43:26
Base EXTRATERRESTRE en Alaska : le triangle maudit
411.3K viewsApr 17, 2025
YouTubeDiscovery Channel France
34:00
Inside Look At Area 51 *New Theories Revealed!* | Ancient Aliens | History
10.4M viewsApr 22, 2025
YouTubeHISTORY
2:02
Alien: Romulus | Official Trailer
13.4M viewsJun 4, 2024
YouTube20th Century Studios
29:44
Les aliens sont-ils comme nous ? | 42 - La réponse à presque tout | ARTE
332.6K viewsJul 5, 2024
YouTubeARTE
1:22:32
ALIEN STRAIN | Sci-Fi Action Thriller | Full Movie | FilmIsNow
42.4K viewsJul 5, 2024
YouTubeFilmIsNow Movies
0:42
Find in video from 00:33L'homme, un hybride alien?
20H45 - Samedi 23 Juin - Alien Theory : les visiteurs
23.9K viewsMay 12, 2015
YouTubeRMC DECOUVERTE
See more
Static thumbnail place holder