If Aliens Invaded Earth | Alien Encounters (Full Episode)
43:05
If Aliens Invaded Earth | Alien Encounters (Full Episode)
2.8M viewsOct 4, 2019
YouTubeScience Channel
What If Aliens Contact Us? | Alien Encounters (Full Episode)
43:08
What If Aliens Contact Us? | Alien Encounters (Full Episode)
783.1K viewsSep 19, 2019
YouTubeScience Channel
The Strangest Encounters in Space | NASA's Unexplained Files (Full Episode)
43:05
The Strangest Encounters in Space | NASA's Unexplained Files (Full Episode)
9.3M viewsJun 13, 2019
YouTubeScience Channel
A Piece of the Sun Missing? | NASA's Unexplained Files (Full Episode)
43:05
A Piece of the Sun Missing? | NASA's Unexplained Files (Full Episode)
4.3M viewsJul 4, 2019
YouTubeScience Channel
Mysterious Lights Interrupt Astronaut's Spacewalk | NASA's Unexplained Files (Full Episode)
43:06
Mysterious Lights Interrupt Astronaut's Spacewalk | NASA's Unexplained Files (Full Episode)
1.4M viewsJun 20, 2019
YouTubeScience Channel
Close Encounters with Terrifying Aliens | UFO Files
28:46
Close Encounters with Terrifying Aliens | UFO Files
87.7K views6 days ago
YouTubeHISTORY
Who Are the Greys Visiting Earth for Millennia? (S4, E3) | Ancient Aliens | Full Episode
44:14
Who Are the Greys Visiting Earth for Millennia? (S4, E3) | Ancient Aliens | Full Episode
56.8K views1 day ago
YouTubeHISTORY
42:15
The Global Threat (Full Episode) | UFOs: Investigating the Unknown
6.7M viewsFeb 24, 2024
YouTubeNational Geographic
44:23
The Universe: UFOs Caught Visiting Earth (S6, E6) | Full Episode | History
6M viewsNov 11, 2022
YouTubeHISTORY
42:12
Secret Pentagon Program (Full Episode) | UFOs: Investigating the Unknown
4.6M viewsApr 9, 2023
YouTubeNational Geographic
42:14
UFO Sightings at Nuclear Bases (Full Episode) | UFOs: Investigating the Unknown
2.2M viewsJul 28, 2023
YouTubeNational Geographic
43:04
What's Behind this Bizarre Looking Comet? | NASA's Unexplained Files (Full Episode)
1.8M viewsJun 27, 2019
YouTubeScience Channel
7:17
The Hampton Incident: An Unexplained U.F.O. Sighting in 1965 | NASA's Unexplained Files
516.4K viewsAug 18, 2022
YouTubeScience Channel
48:38
A Spine Tingling UFO Hunt | UFO’s Over Earth | Full Episode | Discovery Channel
511.7K views11 months ago
YouTubeDiscoveryChannelInd
26:18
UFOs: Last Week Tonight with John Oliver (HBO)
10M viewsApr 25, 2024
YouTubeLastWeekTonight
18:31
Ancient Aliens: Inside Area 51's UFO Secrets | History
5.8M viewsMay 9, 2024
YouTubeHISTORY
2:12:18
UFO Mysteries Will Shock You! *Marathon* | Ancient Aliens | History
687.2K viewsApr 14, 2025
YouTubeHISTORY
42:14
Government Breaks Silence: Strange Encounters | UFO's Investigating the Unknown
7M viewsApr 26, 2024
YouTubeNational Geographic
43:06
If Aliens Ever Arrived on Earth | Alien Encounters (Full Episode)
2M viewsSep 26, 2019
YouTubeScience Channel
17:02
10TH MISSING SCIENTIST As UFO Mystery Deepens
340.2K views1 day ago
YouTubeBreaking Points
3:20:33
I Spent 48 Hours With Bob Lazar (Inside Area51's UFO Program)
288.2K views3 days ago
YouTubeJesse Michels
35:57
Craziest Alien UFO Crashes | Ancient Aliens | History
394.4K views10 months ago
YouTubeHISTORY
57:28
Alien Encounters You Won't Believe | Ancient Aliens | History
38.3M viewsDec 15, 2022
YouTubeHISTORY
43:05
Mysterious Signs of "Intelligent Lightning" | NASA's Unexplained Files (Full Episode)
499.8K viewsJul 18, 2019
YouTubeScience Channel
7:29
JFK's Memo to NASA... Just Ten Days Before Assassination | NASA's Unexplained Files
1.6M viewsJul 28, 2022
YouTubeScience Channel
10:41
Neil Armstrong’s Search for an Ancient Library in the Amazon | NASA's Unexplained Files
2M viewsAug 25, 2021
YouTubeScience Channel
43:45
UFO Hunters: Terrifying Encounters with Mysterious Beings (S3, E12) | Full Episode | History
1.4M viewsMar 9, 2021
YouTubeHISTORY
1:00
The Dark, Evil Twin of the Sun! | NASA's Unexplained Files
501.6K viewsAug 12, 2022
YouTubeScience Channel
8:48
Disaster Strikes a Lone Soviet Cosmonaut! | NASA's Unexplained Files
409.1K viewsAug 11, 2022
YouTubeScience Channel
1:18:48
The UFO Phenomenon | Full Documentary 2021 | 7NEWS Spotlight
16.8M viewsSep 6, 2021
YouTube7 News Spotlight
See more