Encounters that threatened America | UFOs: Top Secret Alien Files | History
1:19:08
YouTubeHISTORY
Encounters that threatened America | UFOs: Top Secret Alien Files | History
For everyday heroes in law enforcement and the military, their mission to serve and protect is put to the ultimate test when they come face to face with dangerous UFOs. See more in this special, "UFOs: Top Secret Alien Files." #HISTORY #UFOsTopSecretAlienFiles Don't miss a video! Subscribe NOW: https://www.youtube.com/@HISTORY?sub_confirmation ...
1.4M viewsSep 27, 2024
SETI Project
What Is the SETI Project? Searching for Intelligent Life in the Universe 🌌✨
0:29
What Is the SETI Project? Searching for Intelligent Life in the Universe 🌌✨
YouTubeYouKnowSpacehub
106 views4 months ago
The Largest Search for Extraterrestrial Intelligence (SETI) | Berkeley's Breakthrough Listen Project
20:20
The Largest Search for Extraterrestrial Intelligence (SETI) | Berkeley's Breakthrough Listen Project
YouTubeNerd Nite
7.4K viewsMar 9, 2019
SETI Project - Ganymed
7:56
SETI Project - Ganymed
YouTubeSETI Project
172 views2 months ago
Top videos
Secrets from Outer Space *Marathon* | Ancient Aliens | History
2:48:29
Secrets from Outer Space *Marathon* | Ancient Aliens | History
YouTubeHISTORY
1.3M viewsMar 31, 2025
Alien Truth-Seekers Unite: Rick, Marty & Travis | Ancient Aliens | History
43:21
Alien Truth-Seekers Unite: Rick, Marty & Travis | Ancient Aliens | History
YouTubeHISTORY
1M views7 months ago
What If We Found Alien Life on K2-18 b?
24:21
What If We Found Alien Life on K2-18 b?
YouTubeWhat If
699.7K views9 months ago
Fermi Paradox Explained
Fermi Paradox Explained: Are We Really Alone in the Universe? | Alien Mystery Documentary
8:09
Fermi Paradox Explained: Are We Really Alone in the Universe? | Alien Mystery Documentary
YouTubeFACT NEXOR
1 week ago
The Fermi Paradox Explained 👽 | Where Is Everyone? (60s)
0:37
The Fermi Paradox Explained 👽 | Where Is Everyone? (60s)
YouTubeEarthMind Studio
667 views1 month ago
The Fermi Paradox Has a Terrifying Solution – And It Changes Everything
20:06
The Fermi Paradox Has a Terrifying Solution – And It Changes Everything
YouTubeImagine The Universe
5.4K views1 month ago
Secrets from Outer Space *Marathon* | Ancient Aliens | History
2:48:29
Secrets from Outer Space *Marathon* | Ancient Aliens | History
1.3M viewsMar 31, 2025
YouTubeHISTORY
Alien Truth-Seekers Unite: Rick, Marty & Travis | Ancient Aliens | History
43:21
Alien Truth-Seekers Unite: Rick, Marty & Travis | Ancient Aliens | H…
1M views7 months ago
YouTubeHISTORY
What If We Found Alien Life on K2-18 b?
24:21
What If We Found Alien Life on K2-18 b?
699.7K views9 months ago
YouTubeWhat If
Lost Civilizations Beyond History | Ancient Aliens
33:12
Lost Civilizations Beyond History | Ancient Aliens
512.5K views1 month ago
YouTubeHISTORY
Did We Detect Life on an Alien Planet? With David Kipping
14:23
Did We Detect Life on an Alien Planet? With David Kipping
913.1K views11 months ago
YouTubeStarTalk
Searching For Aliens and Our Place in the Universe | How the Universe Works | Science Channel
1:25:26
Searching For Aliens and Our Place in the Universe | How the Univers…
1.7M views10 months ago
YouTubeScience Channel
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 Program…
7.3M viewsOct 5, 2024
YouTubeNational Geographic
41:19
What NASA Knows About Mars | Ancient Aliens
456.5K views2 months ago
YouTubeHISTORY
1:31:03
Evidence of Early Alien Contact with Earth | Ancient Aliens (S1, E99) | F…
3.2M viewsNov 16, 2024
YouTubeHISTORY
2:06:24
Alien Evolution, Hidden Worlds & Deep Sea Secrets *Marathon* | An…
545.5K views7 months ago
YouTubeHISTORY
51:40
Have Aliens Been Spotted On Pluto?
286.8K views6 months ago
YouTubeWonder
28:46
Close Encounters with Terrifying Aliens | UFO Files
99.9K views1 week ago
YouTubeHISTORY
6:44
Government officials discuss UAPs, alien life in new documentary
355.9K views4 months ago
YouTubeCBS News
23:35
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens …
270.2K views8 months ago
YouTubeHISTORY
24:36
Uncovering the Alien Genetic Blueprint | Ancient Aliens
136.9K views3 months ago
YouTubeHISTORY
1:18:32
The NEW Complete Alien Timeline (1979 - 2025)
110.1K views4 months ago
YouTubeNerdist
52:11
Is Alien Life Hiding in Our Solar System? | Life In Outer Space | FU…
437.9K views10 months ago
YouTubeNaked Science
1:30:54
Alien Contact: How Would Humanity React? | FULL DOCUMENTARY
672.7K viewsMar 9, 2025
YouTubeNaked Science
45:55
The Search for Alien Life: Inside Earth’s Most Advanced Research …
46.7K views1 month ago
YouTubeSpark
13:40
Ancient Aliens: Evidence of Life in Outer Space | History
412.1K viewsJul 25, 2024
YouTubeHISTORY
26:18
Physicists clash over evidence for alien life | Matt O'Dowd, Avi Loeb, …
58.2K views4 months ago
YouTubeThe Institute of Art and Ideas
24:58
Top 20 Alien Documentaries You HAVE to See
65.7K viewsMar 11, 2025
YouTubeWatchMojo.com
1:01:51
Exposing Government Secrets! | ALIEN AND UFO ENCOUNTERS: T…
393.8K viewsApr 28, 2024
YouTubeFilmIsNow Movies
1:14:22
Alien Moon (Full Documentary)
174.1K viewsJun 22, 2023
YouTubeExtreme Mysteries
1:10:11
Exploring the Unknown | Alien Life Forms | Full Sci-Fi Documentary | …
3K views8 months ago
YouTubeV Movies
50:15
Universe: Beyond the Millennium - Alien Life
1.1M viewsMar 21, 2014
YouTubeNaked Science
9:07
How the Grotesque Creatures of Alien: Earth Were Made
79.9K views8 months ago
YouTubeIGN
1:14:21
A Man Claims to Channel an Alien Being | INTERVIEW WITH THE EX…
1.8K views5 months ago
YouTubeFilmIsNow Movies
50:02
When Will We Find Alien Life on Other Planets?
2K views2 weeks ago
YouTubeWonder
See more videos
Static thumbnail place holder