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
pbs.org
10 Documentaries About Aliens & UFOs on PBS | PBS
From extraterrestrial beings to UFOs, there's countless theories and reported sightings of life from other galaxies. Whether you believe in Grays or are…
Jan 11, 2023
Extraterrestrial Life Forms
12:49
Alien Life Form Found On Mars Grows Rapidly Once Brought Back To life
YouTube
Story Recapped
1.8M views
Jul 24, 2021
52:52
$
UFOs & Aliens: Alien Life Forms
vudu.com
Nov 19, 2024
0:27
The 6 Most Likely Places to Find Alien Life
SPACE.com
Seth Shostak
May 16, 2012
Top videos
56:36
Insane UFO Encounters (Full Documentary) | Top 20 UFO Cases Of ALL TIME
YouTube
Extreme Mysteries
3.4M views
Oct 9, 2021
3:09:30
Proof The Military Captured A Live Alien In Brazil | James Fox
YouTube
Danny Jones
1.3M views
Aug 29, 2022
1:19
'They Also Found a Live Alien' Ep. 4 Official Clip | UFO | SHOWTIME Documentary Series
YouTube
SHOWTIME
2.2M views
Sep 2, 2021
Roswell Incident Documentary
12:06
20K views · 297 reactions | Join the renowned Philip Coppens, best known for his appearances on the History Channel's 'Ancient Aliens' series, as he delves into an unprecedented exploration of the Roswell Incident. Get ready to discover a whole new perspective on this enigmatic event, as we reveal the astonishing revelations that go beyond anything you've ever imagined. | Free Documentary | Facebook
Facebook
Free Documentary
20.1K views
3 weeks ago
1:13
Roswell 1947 – The Incident That Started the UFO Mystery #history #historyfacts #mystery
YouTube
EraLoom
39 views
1 week ago
13:25
New Analysis of "Alien" Bacteria that Killed Varginha UFO Witness STUNS Doctors | James Fox
YouTube
Danny Jones Clips
48.2K views
2 weeks ago
56:36
Insane UFO Encounters (Full Documentary) | Top 20 UFO Case
…
3.4M views
Oct 9, 2021
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
1:19
'They Also Found a Live Alien' Ep. 4 Official Clip | UFO | SHOWTIME Do
…
2.2M views
Sep 2, 2021
YouTube
SHOWTIME
47:16
The UFO Conclusion | Full Documentary | Aliens | Otherworld
…
324.8K views
Jun 10, 2023
YouTube
Beautiful World - Documentaries
1:00:07
Aliens Among Us | Full Documentary
562.6K views
Jan 10, 2024
YouTube
Mediatime Network
1:11:55
UFO Abductions: A Global Phenomenon | See The Evidence!
…
238K views
Feb 26, 2024
YouTube
Sci-Fi Central
2:16
The Alien Perspective - Official Trailer (2025) Documentary
152.8K views
Dec 20, 2024
YouTube
IGN Movie Trailers
47:33
Jaw-Dropping Alien Documentary I The UFO Conclusions I Absolute
…
131.7K views
Dec 28, 2023
YouTube
Absolute Mysteries - Documentaries of the Unk…
1:00:05
The Witnesses - Ancient Alien Encounters | Full 4K Documentary
170.7K views
Feb 4, 2024
YouTube
Mediatime Network
53:03
World War A - When Aliens Attack | Alone in the Universe or Under Th
…
922.8K views
Aug 29, 2022
YouTube
Get.factual
1:33:41
National Geographic | When Aliens Attack (2011) | Full Documentary
52.8K views
Jun 24, 2023
YouTube
burritomensch
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
46:33
The Alien Files: UFOs Under Investigation (Full Episode S1|E7)
285.6K views
Jun 28, 2021
YouTube
Extreme Mysteries
12:21
Top 10 Best Alien Documentaries
917.1K views
Jan 1, 2020
YouTube
WatchMojo.com
3:53
EXCLUSIVE: Buzz Aldrin Confirms UFO Sighting in Syfy's 'Aliens on t
…
6.4M views
Jul 17, 2014
YouTube
Entertainment Tonight
45:59
The Alien Files: UFOs Under Investigation (Full Episode S1|E1)
340.5K views
Jul 27, 2021
YouTube
Extreme Mysteries
37:40
ALIENS: The Untold Documentary of The Sequel that Changed Hollywo
…
453.3K views
Jan 3, 2025
YouTube
The Popcast Brothers
1:14:22
Alien Moon (Full Documentary)
169.3K views
Jun 22, 2023
YouTube
Extreme Mysteries
1:05:08
Alien Artifacts - The Outer Dimensions (Full Documentary)
235K views
Jun 17, 2023
YouTube
Extreme Mysteries
5:14
Does the US government know about aliens? New documentary s
…
213.3K views
2 months ago
YouTube
ABC News
45:02
The Alien Files: UFOs Under Investigation (Full Episode S1|E12)
463K views
Jul 4, 2021
YouTube
Extreme Mysteries
7:24
Ancient Aliens: UFO Evidence Seized by CIA (Season 19) | History
846.5K views
May 20, 2023
YouTube
HISTORY
4:06
Ancient Aliens: UFO Cover-Up Inside the U.S. Government (Seas
…
565.3K views
May 27, 2021
YouTube
HISTORY
8:35
Ancient Aliens: TRUTH UNCOVERED By UFO Investigatio
…
396.4K views
Mar 25, 2023
YouTube
HISTORY
38:52
Paul Wallis - WHY ARE THEY HERE? The Secret Alien Agenda -
…
619.3K views
Nov 12, 2023
YouTube
The 5th Kind
1:05:48
ALIEN CHRONICLES (S1E6) - HUMAN TELEPORTATION - ALIE
…
265.8K views
Jun 7, 2022
YouTube
Extreme Mysteries
40:03
The Aveley Extraterrestrial Abduction | Documentary
846.1K views
Aug 13, 2023
YouTube
The Paranormal Scholar
3:14:17
5 Deeply Disturbing Alien Abductions | 2023 The Paranorma
…
214.8K views
Jan 21, 2024
YouTube
The Paranormal Scholar
See more videos
More like this
Feedback
Feedback