Why haven’t we found aliens? A physicist shares the most popular theories. | Brian Cox
12:47
Why haven’t we found aliens? A physicist shares the most popular th…
2.9M viewsSep 29, 2023
YouTubeBig Think
HIGHLY INFECTIOUS ALIEN DISEASE | Countdown to Armageddon | History
7:24
Find in video from 03:54Eskimo Villages Epidemic Outbreaks
HIGHLY INFECTIOUS ALIEN DISEASE | Countdown to Armageddon | History
112K viewsNov 3, 2022
YouTubeHISTORY
How to Survive an Alien Invasion
9:59
How to Survive an Alien Invasion
899.9K viewsNov 21, 2020
YouTubeHow to Survive Show
How Close Are We To Finding Alien Life?
1:16:35
How Close Are We To Finding Alien Life?
558.3K viewsMar 13, 2024
YouTubeWhat If
ALIEN: EARTH “Xenomorph Outbreak” Official Teaser Trailer (2025)
1:41
ALIEN: EARTH “Xenomorph Outbreak” Official Teaser Trailer (2025)
42.7K viewsJun 14, 2025
YouTubeFilmSelect
Are We Part Alien? | Ancient Aliens
25:21
Are We Part Alien? | Ancient Aliens
73.7K views3 months ago
YouTubeHISTORY
UFO's: Investigating the Unknown MEGA EPISODE | Secret Programs and Close Encounters | Nat Geo
3:30:10
UFO's: Investigating the Unknown MEGA EPISODE | Secret Programs an…
7.9M viewsOct 5, 2024
YouTubeNational Geographic
34:00
Inside Look At Area 51 *New Theories Revealed!* | Ancient Aliens | History
10.4M viewsApr 22, 2025
YouTubeHISTORY
35:57
Craziest Alien UFO Crashes | Ancient Aliens | History
495K viewsMay 27, 2025
YouTubeHISTORY
14:14
ALIEN Franchise RECAP! (1979-2025) Everything You Need to Know Before …
211.5K views10 months ago
YouTubeScreenCrush
1:18:32
The NEW Complete Alien Timeline (1979 - 2025)
184.3K views7 months ago
YouTubeNerdist
19:53
Have Aliens Visited Earth? | StarTalk 101 with Neil deGrasse Tyson
754.1K viewsAug 1, 2023
YouTubeStarTalk
16:17
Find in video from 12:04Hiding from the Alien
Alien Isolation Walkthrough Gameplay Part 8 - The Outbreak (PS4)
941K viewsOct 17, 2014
YouTubetheRadBrad
45:56
Groundbreaking & Unexplainable Technology | Ancient Aliens | History
2M viewsJun 24, 2025
YouTubeHISTORY
27:38
Ancient Aliens: TOP 10 ALIEN ENCOUNTERS OF 2023 | PART 2 | Hi…
6.1M viewsDec 14, 2023
YouTubeHISTORY
18:36
Discovered: Top Secret Alien Bases | Ancient Aliens | History
1.2M viewsMar 30, 2025
YouTubeHISTORY
11:51
How Do Outbreaks Start? Pathogens and Immunology: Crash Course Outb…
213.7K viewsSep 14, 2021
YouTubeCrashCourse
43:05
Find in video from 05:07Global Tension over Alien Message
If Aliens Invaded Earth | Alien Encounters (Full Episode)
2.8M viewsOct 4, 2019
YouTubeScience Channel
1:31:03
Evidence of Early Alien Contact with Earth | Ancient Aliens (S1, E99) | Full …
3.6M viewsNov 16, 2024
YouTubeHISTORY
13:20
10 Alien Species Believed to Be Visiting Earth
123.3K viewsJun 25, 2025
YouTubeWatchMojo.com
18:52
The Entire Alien Franchise Timeline Explained
105.3K views11 months ago
YouTubeLooper
11:31
Find in video from 01:09Understanding Outbreaks
What Is Outbreak Science? Crash Course Outbreak Science #1
132.8K viewsSep 7, 2021
YouTubeCrashCourse
18:31
Ancient Aliens: Inside Area 51's UFO Secrets | History
5.9M viewsMay 9, 2024
YouTubeHISTORY
19:53
Find in video from 04:00The Alien Encounter
Alien: Xenomorphs wipe out earth
367.8K viewsMay 2, 2017
YouTubeComics Explained
9:07
Find in video from 01:17Mantis Aliens Explained
Victim Describes Experience with Mantis Aliens While Under Hypnosis …
96.2K viewsSep 24, 2023
YouTubeTravel Channel
12:44
CDC NERD Academy Student Quick Learn: How is an outbreak investigat…
91.7K viewsApr 29, 2022
YouTubeCenters for Disease Control and Prevention (CDC)
13:42
Could We Survive an Alien Invasion?
1.2M viewsMar 13, 2013
YouTubeGood Mythical Morning
4:12
Find in video from 01:09Why NASA Won't Rule Out Aliens
NASA releases report into whether aliens exist | ABC News
38.2K viewsSep 14, 2023
YouTubeABC News (Australia)
1:01:51
Exposing Government Secrets! | ALIEN AND UFO ENCOUNTERS: THE TOP 20
393.9K viewsApr 28, 2024
YouTubeFilmIsNow Movies
See more videos
Static thumbnail place holder