All
Search
Images
Videos
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
43:05
YouTube
Science Channel
If Aliens Invaded Earth | Alien Encounters (Full Episode)
The Arrival has ended. A swarm of small spacecraft depart their huge mothership, and hover in our atmosphere. The ships open their hatches, and deposit thousands of mysterious pods on the earth's surface. Are they a message, a gift or a weapon? Stream More Episodes of Alien Encounters: https://www.sciencechannel.com/tv-shows/alien-encounters ...
2.8M views
Oct 4, 2019
Alien Movies
38:59
THE BEST NEW MONSTER & ALIEN MOVIES 2025 - 2026 (Trailers)
YouTube
KinoCheck.com
312.6K views
3 months ago
2:48
Alien: Romulus | Final Trailer
YouTube
20th Century Studios
7.8M views
Jul 18, 2024
2:02
Alien: Romulus | Official Trailer
YouTube
20th Century Studios
13.1M views
Jun 4, 2024
Top videos
43:06
If Aliens Ever Arrived on Earth | Alien Encounters (Full Episode)
YouTube
Science Channel
2M views
Sep 26, 2019
43:08
What If Aliens Contact Us? | Alien Encounters (Full Episode)
YouTube
Science Channel
778.2K views
Sep 19, 2019
3:30:10
UFO's: Investigating the Unknown MEGA EPISODE | Secret Programs and Close Encounters | Nat Geo
YouTube
National Geographic
7M views
Oct 5, 2024
Famous Alien Characters
19:40
Top 20 Alien Characters of All Time
YouTube
WatchMojo.com
165.6K views
Sep 22, 2020
0:16
Top 10 Fictional Aliens in the Galaxy | Iconic Alien Characters in Sci Fi
YouTube
Top10 In Galaxy
1.2K views
2 months ago
12:15
The Alien Movie Saga Finally Explained
YouTube
Looper
3.4M views
May 3, 2020
43:06
Find in video from 05:03
The Alien Star System
If Aliens Ever Arrived on Earth | Alien Encounters (Full Episode)
2M views
Sep 26, 2019
YouTube
Science Channel
43:08
Find in video from 21:02
The Risks of Contacting Aliens
What If Aliens Contact Us? | Alien Encounters (Full Episode)
778.2K views
Sep 19, 2019
YouTube
Science Channel
3:30:10
Find in video from 1:23:57
Close Encounters at Nuclear Bases
UFO's: Investigating the Unknown MEGA EPISODE | Secret Program
…
7M views
Oct 5, 2024
YouTube
National Geographic
1:02:37
EXTRATERRESTRIAL ENCOUNTERS: THE GREYS | Full
…
104.4K views
7 months ago
YouTube
V Movies
57:28
Find in video from 02:30
Cultural Heritage of UFO Encounters
10 Alien Encounters You Won't Believe | Ancient Aliens | History
37.2M views
Dec 15, 2022
YouTube
HISTORY
42:15
The Global Threat (Full Episode) | UFOs: Investigating the Unknown
6.4M views
Feb 24, 2024
YouTube
National Geographic
13:29
Find in video from 0:00
Introduction of Ancient Aliens: Top 3 Terrifying Alien Encounters (Season 20)
Ancient Aliens: Top 3 Terrifying Alien Encounters (Season 20) | Hi
…
178.3K views
Feb 15, 2024
YouTube
HISTORY
2:52:45
UFO Witness: The Greatest Alien Moments! | UFO Witness S2 E5, E
…
37.5K views
2 months ago
YouTube
DiscoveryChannelInd
23:04
Spookiest UFO Stories | Alien Encounters: Fact or Fiction | Disc
…
30.3K views
Oct 10, 2024
YouTube
Discovery
23:06
Most Compelling UFO Stories | Alien Encounters: Fact or Fiction | Disc
…
39.4K views
Aug 28, 2024
YouTube
Discovery
2:46:22
Shocking UFO Sightings You Can’t Ignore! | Alien Encounters: Fact o
…
56.5K views
9 months ago
YouTube
DiscoveryChannelInd
1:17:27
Find in video from 00:50
Introduction to Armando Zurbaran's Encounter
Unearthly Encounters | ALIEN ABDUCTION: THE STRANGEST U
…
1.2M views
May 26, 2024
YouTube
FilmIsNow Movies
42:14
Find in video from 02:26
Government's UFO Files
Government Breaks Silence: Strange Encounters | UFO's Invest
…
6.8M views
Apr 26, 2024
YouTube
National Geographic
1:09:50
Unsolved Alien Mysteries: from Alaska's Pyramid to the Freemaso
…
2.5M views
3 months ago
YouTube
HISTORY
43:03
The Military & Extraterrestrial Encounters | Ancient Aliens
115.5K views
2 weeks ago
YouTube
HISTORY
19:18
Ancient Aliens: Secret UFO Encounters on U.S. Soil | History
327.7K views
Oct 10, 2024
YouTube
HISTORY
1:58:41
77 Irrefutable UFO and Alien Sightings caught on camera I Sho
…
141.8K views
9 months ago
YouTube
LAB 360
9:54
UFO Footage Captured From Multiple Angles | Aliens In Alaska
113.6K views
Apr 20, 2024
YouTube
Discovery UK
1:01:51
Exposing Government Secrets! | ALIEN AND UFO ENCOUNTERS: T
…
393.1K views
Apr 28, 2024
YouTube
FilmIsNow Movies
18:31
Find in video from 04:03
Extraterrestrial Encounters
Ancient Aliens: Inside Area 51's UFO Secrets | History
5.8M views
May 9, 2024
YouTube
HISTORY
42:22
Find in video from 0:00
Intro of Ancient Aliens: Are Paranormal Encounters Signs of Other Dimensions? (S14, E11) | Full Epis
Ancient Aliens: Are Paranormal Encounters Signs of Other Dimen
…
1M views
Aug 24, 2024
YouTube
HISTORY
16:48
Ancient Aliens: Extraterrestrial Secrets in the Constellations | Hist
…
326.2K views
Sep 19, 2024
YouTube
HISTORY
30:23
Most Shocking Mysteries of 2025 (Pt. 1) | The Secret of Skinwalker R
…
143.5K views
2 weeks ago
YouTube
HISTORY
13:20
10 Alien Species Believed to Be Visiting Earth
108.9K views
6 months ago
YouTube
WatchMojo.com
2:05:33
Uncovering the Truth: Giants, Alien Relics & The Human Experiment *
…
394.9K views
4 months ago
YouTube
HISTORY
42:35
Nordics & The Cube: UFO True Story | UFO Witness S2 Ep8 | Disc
…
88.8K views
6 months ago
YouTube
DiscoveryChannelInd
36:48
When Aliens Walked Among Us | Ancient Aliens | History
86.9K views
1 month ago
YouTube
HISTORY
1:02:37
Alien Mysteries | Extraterrestrial Encounters: The Greys | Full Sci-F
…
14.4K views
2 months ago
YouTube
V Movies
16:27
Ancient Aliens: Unbelievable Extraterrestrial Encounters in Ant
…
549.8K views
Mar 28, 2024
YouTube
HISTORY
See more videos
More like this
Feedback
Feedback