The Search Goes On for Alien Life *Marathon* | The Universe
2:12:37
The Search Goes On for Alien Life *Marathon* | The Universe
78.8K views1 month ago
YouTubeHISTORY
The Nearest Planets That Could Have Alien Life
52:36
The Nearest Planets That Could Have Alien Life
38.3K views3 weeks ago
YouTubeWonder
Alien Evolution, Hidden Worlds & Deep Sea Secrets *Marathon* | Ancient Aliens | History
2:06:24
Alien Evolution, Hidden Worlds & Deep Sea Secrets *Marathon* | Ancient Aliens | History
649.6K views8 months ago
YouTubeHISTORY
Is Alien Life Hiding in Our Solar System? | Life In Outer Space | FULL DOCUMENTARY
52:11
Is Alien Life Hiding in Our Solar System? | Life In Outer Space | FULL DOCUMENTARY
450.5K views10 months ago
YouTubeNaked Science
Exploring the Unknown | Alien Life Forms | Full Sci-Fi Documentary | Free Movie
1:10:11
Exploring the Unknown | Alien Life Forms | Full Sci-Fi Documentary | Free Movie
3K views9 months ago
YouTubeV Movies
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 Universe Works | Science Channel
1.7M views11 months ago
YouTubeScience Channel
Close Encounters with Terrifying Aliens | UFO Files
28:46
Close Encounters with Terrifying Aliens | UFO Files
122.6K views4 weeks ago
YouTubeHISTORY
1:19:42
The Search For Alien Life And a New Home | Space's Deepest Secrets | Science Channel
215.9K views5 months ago
YouTubeScience Channel
24:36
Uncovering the Alien Genetic Blueprint | Ancient Aliens
136.9K views4 months ago
YouTubeHISTORY
50:02
When Will We Find Alien Life on Other Planets?
2.2K views1 month ago
YouTubeWonder
45:55
The Search for Alien Life: Inside Earth’s Most Advanced Research Vessel
47.2K views1 month ago
YouTubeSpark
6:44
Government officials discuss UAPs, alien life in new documentary
359.1K views5 months ago
YouTubeCBS News
1:44:50
Unveiling the Unknown | Secret Space UFOs: Apollo 1-11 | Full Documentary Movie | Free Movie
41.2K views3 months ago
YouTubeV Movies
2:42:49
119 Real UFOs 2026: Insane Raw Alien and UFO Sightings Caught on Camera
24.8K views4 weeks ago
YouTubeLAB 360
1:01:28
Ancient Mysteries | Ancient Aliens: Origin of Humanity | Full Sci-Fi Documentary | Free Movie
7.4K views6 months ago
YouTubeV Movies
50:02
Every Possible Outcome Of Humans Making Contact With Aliens
25.9K views4 months ago
YouTubeSpark
9:48
(New) 6 CLEAREST UFO Sightings Caught On Camera | REAL UFOS 2026!
2.1K views3 weeks ago
YouTubeLAB 360
33:12
Lost Civilizations Beyond History | Ancient Aliens
562.1K views2 months ago
YouTubeHISTORY
35:58
Legends of Strange Creatures | Ancient Aliens
242.5K views1 month ago
YouTubeHISTORY
1:32:54
Unveiling the Unknown | We Are Not Alone | Full Sci-Fi Documentary Movie | Free Movie
26.2K views1 month ago
YouTubeV Movies
41:19
What NASA Knows About Mars | Ancient Aliens
496.9K views2 months ago
YouTubeHISTORY
2:36:06
114 Real Alien and UFO Sightings 2026 | UFO Landing Caught on Camera Blowing Up Online!
20.2K views1 month ago
YouTubeLAB 360
2:21:26
Will Smith Examines Mysteries of Planet Earth | One Strange Rock MEGA Episode | National Geographic
91.3K views4 weeks ago
YouTubeNational Geographic
3:30:10
UFO's: Investigating the Unknown MEGA EPISODE | Secret Programs and Close Encounters | Nat Geo
7.4M viewsOct 5, 2024
YouTubeNational Geographic
2:48:29
Secrets from Outer Space *Marathon* | Ancient Aliens | History
1.2M viewsMar 31, 2025
YouTubeHISTORY
1:30:54
Alien Contact: How Would Humanity React? | FULL DOCUMENTARY
686.7K viewsMar 9, 2025
YouTubeNaked Science
26:18
Physicists clash over evidence for alien life | Matt O'Dowd, Avi Loeb, Carol Cleland
58.2K views5 months ago
YouTubeThe Institute of Art and Ideas
10:20
Alien Encounters That Will Shock You: Real Abductions Finally Revealed!
104.4K views6 months ago
YouTubeLAB 360
24:58
Top 20 Alien Documentaries You HAVE to See
66K viewsMar 11, 2025
YouTubeWatchMojo.com
See more