The Truth Behind Aliens, Cover-Ups, and the Unknown *Marathon* | Ancient Aliens
2:12:17
YouTubeHISTORY
The Truth Behind Aliens, Cover-Ups, and the Unknown *Marathon* | Ancient Aliens
From Bigfoot encounters and hidden extraterrestrial theories to Einstein’s revolutionary ideas and alleged government cover-ups, this marathon explores some of the most debated mysteries surrounding alien contact and the unknown. See more in this marathon. Stay up to date on all of your favorite shows on The HISTORY Channel website at http ...
90.8K views3 days ago
Roswell Incident
The Mysterious Roswell UFO Incident of 1947
1:26
The Mysterious Roswell UFO Incident of 1947
YouTubeSmithsonian Channel
314.7K viewsJan 9, 2012
144p to 4K — Roswell UFO Crash 1947
0:17
144p to 4K — Roswell UFO Crash 1947
YouTubeRemastered History
1 day ago
The Roswell Incident FINALLY Explained — What Really Crashed in 1947
1:13:27
The Roswell Incident FINALLY Explained — What Really Crashed in 1947
YouTubeBright Side History Legends
396 views3 months ago
Top videos
ALIEN RACES EXPLAINED! | Alien Arrival: Preparing For Contact
1:00:44
ALIEN RACES EXPLAINED! | Alien Arrival: Preparing For Contact
YouTubeExtreme Mysteries
123.1K viewsJan 27, 2024
The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens
5:12
The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens
YouTubeHISTORY
12.6K views3 days ago
The Most Terrifying Extraordinary Alien & Cryptid Encounters! | Full Sci-Fi Documentary
1:01:52
The Most Terrifying Extraordinary Alien & Cryptid Encounters! | Full Sci-Fi Documentary
YouTubeSci-Fi Central
7.7K views1 week ago
Bob Lazar Interview
UFO files: Bob Lazar's 1989 interview & what's happened since then | UFO Mysteries
28:32
UFO files: Bob Lazar's 1989 interview & what's happened since then | UFO Mysteries
YouTube8 News Now — Las Vegas
520.3K views1 month ago
Bob Lazar Tells me Everything in NEW Interview - DEBRIEFED ep. 83
2:00:19
Bob Lazar Tells me Everything in NEW Interview - DEBRIEFED ep. 83
YouTubeArea52
2.7M views1 month ago
The Success Of ’S4: The Bob Lazar Story’ | Mystery Wire
22:22
The Success Of ’S4: The Bob Lazar Story’ | Mystery Wire
YouTube8 News Now — Las Vegas
83K views3 weeks ago
ALIEN RACES EXPLAINED! | Alien Arrival: Preparing For Contact
1:00:44
ALIEN RACES EXPLAINED! | Alien Arrival: Preparing For Contact
123.1K viewsJan 27, 2024
YouTubeExtreme Mysteries
The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens
5:12
The Strange Similarities Between Humans and Aliens (S1) | Ancient …
12.6K views3 days ago
YouTubeHISTORY
The Most Terrifying Extraordinary Alien & Cryptid Encounters! | Full Sci-Fi Documentary
1:01:52
The Most Terrifying Extraordinary Alien & Cryptid Encounters! | Full …
7.7K views1 week ago
YouTubeSci-Fi Central
Alien Evolution, Hidden Worlds & Deep Sea Secrets *Marathon* | Ancient Aliens | History
2:06:24
Alien Evolution, Hidden Worlds & Deep Sea Secrets *Marathon* | An…
649.6K views8 months ago
YouTubeHISTORY
Alien Hybrids & the Secret Programs Behind Them | Ancient Aliens | History
23:06
Alien Hybrids & the Secret Programs Behind Them | Ancient …
187.4K views7 months ago
YouTubeHISTORY
NASA’s Chief on the Odds Aliens Have Already Found Earth
1:33
NASA’s Chief on the Odds Aliens Have Already Found Earth
4.3K views4 days ago
YouTubeBloomberg News
Uncovering the Alien Genetic Blueprint | Ancient Aliens
24:36
Uncovering the Alien Genetic Blueprint | Ancient Aliens
136.9K views4 months ago
YouTubeHISTORY
30:56
Egypt’s Greatest Secrets and Alien Theories | Ancient Aliens
79.1K views23 hours ago
YouTubeHISTORY
27:50
Joe Rogan: "Claims There Are 4 Alien Races On Earth! 👽🌍 "
8 views1 day ago
YouTubeJRE Watch
30:21
Rural UFO Encounters That Defy Logic | UFO Files
98K views3 days ago
YouTubeHISTORY
5:29
New Alien Race Uncovered in Mysterious Tablets (Season 1) | A…
63.3K views11 months ago
YouTubeHISTORY
1:19
'They Also Found a Live Alien' Ep. 4 Official Clip | UFO | SHOWTIME Do…
2.2M viewsSep 2, 2021
YouTubeSHOWTIME
2:48:29
Secrets from Outer Space *Marathon* | Ancient Aliens | History
1.2M viewsMar 31, 2025
YouTubeHISTORY
41:58
Mysteries of Sacred Mountains | Ancient Aliens
133.6K views6 days ago
YouTubeHISTORY
43:21
Alien Truth-Seekers Unite: Rick, Marty & Travis | Ancient Aliens | H…
1M views8 months ago
YouTubeHISTORY
49:24
They Exposed Aliens and Something Followed Them Home …
1.5K views23 hours ago
YouTubeBest of Danny Jones
57:08
13 Ancient Mysteries That Prove History Is WRONG! | Full Ancient …
470 views6 hours ago
YouTubeSci-Fi Central
4:20
Ancient Aliens: Alien Crash SURVIVOR Works With the Gover…
216.1K viewsOct 24, 2023
YouTubeHISTORY
20:27
Humans From the Future | Ancient Aliens | History
1.7M viewsMay 8, 2025
YouTubeHISTORY
35:00
Nomadic Aliens – Cultures That Wander the Galaxy
22.6K views3 days ago
YouTubeIsaac Arthur
13:40
Ancient Aliens: Evidence of Life in Outer Space | History
412.1K viewsJul 25, 2024
YouTubeHISTORY
1:29:29
😱 YOU’VE NEVER Seen A BLOCKBUSTER This INTENSE! Al…
2.8K views4 days ago
YouTubePlushollywood
21:03
Earth’s Last Fighters Faced an Alien War That Turned Australia Into a B…
3 days ago
YouTubeBarkus Ramadhan
0:50
🎬 I Am Number Four (2011) | Alien Teen on the Run
4 hours ago
YouTubeVexel
23:20
Linda Moulton Howe's BIGGEST Theories Revealed | Ancient Alien…
320.7K viewsMay 1, 2025
YouTubeHISTORY
13:20
10 Alien Species Believed to Be Visiting Earth
118.3K views10 months ago
YouTubeWatchMojo.com
34:54
Neil deGrasse Tyson on aliens, Mars colonization and 'UFOs' | Talking …
8.5K views6 months ago
YouTubeFOX 5 New York
3:07:17
The REAL Reason Trump is Rushing to Disclose UFO Files | Dan Farah
281.2K views1 week ago
YouTubeDanny Jones
6:35
Dr. Steven Greer: There are 60-70 Species of Extraterrestrials, Most I…
1M viewsJul 26, 2023
YouTubedjvlad
See more videos
Static thumbnail place holder