Top 10 Best Alien Documentaries
12:21
YouTubeWatchMojo.com
Top 10 Best Alien Documentaries
If you’re still watching the stars, these are the alien docs to watch. We’ll be looking at the most popular and provocative alien documentaries ever made. We’re not saying it’s aliens but . . . you should check these out. WatchMojo ranks the best alien docs to watch. What do you think is the best alien doc? Let us know in the comments ...
916.9K viewsJan 1, 2020
Roswell Incident Documentary
The Roswell Incident and UFO Sightings Documentary - PART 1 | Mysteries Decoded | The CW
16:56
The Roswell Incident and UFO Sightings Documentary - PART 1 | Mysteries Decoded | The CW
YouTubeThe CW Network
74.8K views2 months ago
The Roswell Incident and UFO Sightings Documentary - PART 3 | Mysteries Decoded | The CW
12:50
The Roswell Incident and UFO Sightings Documentary - PART 3 | Mysteries Decoded | The CW
YouTubeThe CW Network
16.5K views4 weeks ago
Canada’s Own Roswell Incident (S2, E15) | UFO Files | Full Episode | History
45:12
Canada’s Own Roswell Incident (S2, E15) | UFO Files | Full Episode | History
YouTubeHISTORY
28.7K views3 weeks ago
Top videos
Top 20 Alien Documentaries You HAVE to See
24:58
Top 20 Alien Documentaries You HAVE to See
YouTubeWatchMojo.com
64.7K views9 months ago
Uncovering Earth’s Most Sacred UFO Mysteries *Marathon* | Ancient Aliens
2:06:08
Uncovering Earth’s Most Sacred UFO Mysteries *Marathon* | Ancient Aliens
YouTubeHISTORY
43.2K views1 day ago
Top 10 Must See UFO Docs
Top 10 Must See UFO Docs
YouTubeWatchMojo.com
60.5K viewsJan 24, 2024
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
2.8K views4 months ago
Ancient Aliens: Evidence of Life in Outer Space | History
13:40
Ancient Aliens: Evidence of Life in Outer Space | History
YouTubeHISTORY
409.6K viewsJul 25, 2024
The Search For Alien Life And a New Home | Space's Deepest Secrets | Science Channel
1:19:42
The Search For Alien Life And a New Home | Space's Deepest Secrets | Science Channel
YouTubeScience Channel
89.4K views2 weeks ago
Top 20 Alien Documentaries You HAVE to See
24:58
Top 20 Alien Documentaries You HAVE to See
64.7K views9 months ago
YouTubeWatchMojo.com
Uncovering Earth’s Most Sacred UFO Mysteries *Marathon* | Ancient Aliens
2:06:08
Uncovering Earth’s Most Sacred UFO Mysteries *Marathon* | Ancie…
43.2K views1 day ago
YouTubeHISTORY
Top 10 Must See UFO Docs
Top 10 Must See UFO Docs
60.5K viewsJan 24, 2024
YouTubeWatchMojo.com
Unsolved Alien Mysteries: from Alaska's Pyramid to the Freemasons | Ancient Aliens
1:09:50
Unsolved Alien Mysteries: from Alaska's Pyramid to the Freemaso…
2.5M views3 months ago
YouTubeHISTORY
MOST VIEWED ALIEN ENCOUNTERS of 2025 | The Proof Is Out There
1:44:10
MOST VIEWED ALIEN ENCOUNTERS of 2025 | The Proo…
30.8K views1 week ago
YouTubeHISTORY
When a UFO Split Before Vanishing (S4) | The Proof Is Out There
5:49
When a UFO Split Before Vanishing (S4) | The Proof Is Out There
3.6K views6 hours ago
YouTubeHISTORY
Alien Worlds and More Space Documentaries You Need to Watch on Netflix Right Now
3:21
Alien Worlds and More Space Documentaries You Need to Watc…
2K views5 months ago
MSNNetflix Junkie
57:28
10 Alien Encounters You Won't Believe | Ancient Aliens | History
37.2M viewsDec 15, 2022
YouTubeHISTORY
32:01
Ancient Aliens: TOP 10 ALIEN ENCOUNTERS OF 2023 | PART 1
6.7M viewsDec 7, 2023
YouTubeHISTORY
56:36
Insane UFO Encounters (Full Documentary) | Top 20 UFO Case…
3.4M viewsOct 9, 2021
YouTubeExtreme Mysteries
2:16
The Alien Perspective - Official Trailer (2025) Documentary
151.1K views11 months ago
YouTubeIGN Movie Trailers
14:48
Alien Mountain Investigative Documentary - PART 1 | Mysterie…
93.4K views2 weeks ago
YouTubeThe CW Network
30:23
Most Shocking Mysteries of 2025 (Pt. 1) | The Secret of Skinwalker R…
88.9K views1 week ago
YouTubeHISTORY
42:15
The Global Threat (Full Episode) | UFOs: Investigating the Unknown
6.3M viewsFeb 24, 2024
YouTubeNational Geographic
18:31
Ancient Aliens: Inside Area 51's UFO Secrets | History
5.8M viewsMay 9, 2024
YouTubeHISTORY
25:35
Alien Mountain Investigative Documentary - PART 2 | Mysterie…
65.9K views1 week ago
YouTubeThe CW Network
1:47
Investigation Alien | Official Trailer | Netflix
1.7M viewsOct 11, 2024
YouTubeNetflix
45:56
Groundbreaking & Unexplainable Technology | Ancient Aliens | Hist…
1.4M views5 months ago
YouTubeHISTORY
42:16
Alien Encounters: Coverups or Reality? | UFO Files (S1, E2) | Full …
35.2K views2 weeks ago
YouTubeHISTORY
44:22
The Violent Life of Stars (S1, E10) | The Universe | Full Episode
23.4K views1 week ago
YouTubeHISTORY
1:01:51
Exposing Government Secrets! | ALIEN AND UFO ENCOUNTERS: T…
393.5K viewsApr 28, 2024
YouTubeFilmIsNow Movies
1:44
Top Secret UFO Projects: Declassified | Official Trailer | Netflix
3.8M viewsJul 3, 2021
YouTubeNetflix
51:41
The Proof Is Out There: TOP 10 UFO SIGHTINGS OF 2023 | History
964.9K viewsDec 16, 2023
YouTubeHISTORY
46:49
TOP 10 UFO SIGHTINGS OF 2022 | The Proof Is Out There | History
3.7M viewsDec 17, 2022
YouTubeHISTORY
2:15:55
The Proof Is Out There 2025 S6 | The UFO Files | Documentary Fantasy …
5.4K views1 week ago
YouTubeAadat facts
1:09:03
Signs Of Alien Experiments On Earth | Extraterrestrial Scientists | …
2.6K views4 days ago
YouTubeSci-Fi Central
27:38
Ancient Aliens: TOP 10 ALIEN ENCOUNTERS OF 2023 | PART 2 | …
6.1M viewsDec 14, 2023
YouTubeHISTORY
17:20
Ancient Aliens: Exposing Hidden Lunar Conspiracies | History
539.4K viewsMay 2, 2024
YouTubeHISTORY
2:32:35
99 Indisputable UFO & Alien Sightings Caught on Camera I Sho…
10K views1 week ago
YouTubeLAB 360
See more videos
Static thumbnail place holder