All
Search
Images
Videos
Shorts
Maps
News
More
Shopping
Flights
Travel
Notebook
Report an inappropriate content
Please select one of the options below.
Not Relevant
Offensive
Adult
Child Sexual Abuse
Length
All
Short (less than 5 minutes)
Medium (5-20 minutes)
Long (more than 20 minutes)
Date
All
Past 24 hours
Past week
Past month
Past year
Resolution
All
Lower than 360p
360p or higher
480p or higher
720p or higher
1080p or higher
Source
All
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
Price
All
Free
Paid
Clear filters
SafeSearch:
Moderate
Strict
Moderate (default)
Off
Filter
10 Documentaries About Aliens & UFOs on PBS | PBS
Jan 11, 2023
pbs.org
3:21
Alien Worlds and More Space Documentaries You Need to Watc
…
2K views
6 months ago
MSN
Netflix Junkie
56:36
Insane UFO Encounters (Full Documentary) | Top 20 UFO Case
…
3.4M views
Oct 9, 2021
YouTube
Extreme Mysteries
2:16
The Alien Perspective - Official Trailer (2025) Documentary
152.3K views
Dec 20, 2024
YouTube
IGN Movie Trailers
12:21
Top 10 Best Alien Documentaries
917K views
Jan 1, 2020
YouTube
WatchMojo.com
1:00:05
The Witnesses - Ancient Alien Encounters | Full 4K Documentary
170.8K views
Feb 4, 2024
YouTube
Mediatime Network
1:11:55
UFO Abductions: A Global Phenomenon | See The Evidence!
…
237.5K views
Feb 26, 2024
YouTube
Sci-Fi Central
1:23:40
UFOs Filmed In Broad Daylight | The Journey: The Anthony Woods UF
…
452K views
May 24, 2024
YouTube
Sci-Fi Central
1:00:07
Aliens Among Us | Full Documentary
562.5K views
Jan 10, 2024
YouTube
Mediatime Network
46:34
The Alien Files: UFOs Under Investigation (Full Episode S1|E5)
580.7K views
Jun 25, 2021
YouTube
Extreme Mysteries
29:04
ALIEN CHRONICLES (S1E11) - TRAVIS WALTON - ALIEN AND UF
…
213.7K views
Jul 26, 2022
YouTube
Extreme Mysteries
48:51
UFOS & ALIENS - The Myth Of Space Travel | SPACETIME - SCIE
…
3.5M views
Nov 29, 2019
YouTube
WELT Documentary
1:05:08
Alien Artifacts - The Outer Dimensions (Full Documentary)
235K views
Jun 17, 2023
YouTube
Extreme Mysteries
3:09:30
Proof The Military Captured A Live Alien In Brazil | James Fox
1.3M views
Aug 29, 2022
YouTube
Danny Jones
1:14:22
Alien Moon (Full Documentary)
169.3K views
Jun 22, 2023
YouTube
Extreme Mysteries
1:33:41
National Geographic | When Aliens Attack (2011) | Full Documentary
50.9K views
Jun 24, 2023
YouTube
burritomensch
44:23
The Universe: UFOs Caught Visiting Earth (S6, E6) | Full Episode | Hist
…
5.9M views
Nov 11, 2022
YouTube
HISTORY
43:52
ALIEN: The Untold Documentary of The Film That TERRIFIED Movie G
…
487.9K views
Dec 15, 2024
YouTube
The Popcast
8:44
The Compelling Evidence That Aliens Have Visited Earth
1.7M views
Feb 26, 2016
YouTube
WhatCulture
45:59
The Alien Files: UFOs Under Investigation (Full Episode S1|E1)
340.5K views
Jul 27, 2021
YouTube
Extreme Mysteries
1:01
Aliens Abductions UFOS | Official Trailer | A Tubi Original
13.7K views
Jul 6, 2022
YouTube
Tubi
42:13
Giant UFO in Texas (Full Episode) | UFOs: Investigating the Unknown
5.3M views
Jun 9, 2023
YouTube
National Geographic
47:33
Jaw-Dropping Alien Documentary I The UFO Conclusions I Absolute
…
132K views
Dec 28, 2023
YouTube
Absolute Mysteries - Documentaries of the Unk…
45:02
The Alien Files: UFOs Under Investigation (Full Episode S1|E12)
463K views
Jul 4, 2021
YouTube
Extreme Mysteries
40:03
The Aveley Extraterrestrial Abduction | Documentary
846.1K views
Aug 13, 2023
YouTube
The Paranormal Scholar
1:05:48
ALIEN CHRONICLES (S1E6) - HUMAN TELEPORTATION - ALIE
…
265.8K views
Jun 7, 2022
YouTube
Extreme Mysteries
1:22:21
UFO Chronicles: The Shadow World - Alien and UFO Encounters
254K views
Aug 7, 2022
YouTube
Extreme Mysteries
1:08:50
ALIEN CHRONICLES - ANTARCTIC WORLDS BELOW | The Hidden Ki
…
1M views
Jun 17, 2024
YouTube
FFF Full Free Films
53:03
World War A - When Aliens Attack | Full Science Documentary
918.9K views
Aug 29, 2022
YouTube
Get.factual
1:22:36
Aliens On The Moon: The Truth Exposed | Conspiracy Theory | Ab
…
5.6M views
May 20, 2022
YouTube
Absolute Documentaries
See more videos
More like this
Feedback
Feedback