Alien Mysteries Episodes - Search Videos

The Truth Behind Aliens, Cover-Ups, and the Unknown *Marathon* | Ancient Aliens

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 ...

65.8K views1 day ago

Alien 3 Behind the Scenes

The Making of Alien 3 (1992) Dir.David Fincher - Behind the Scenes

The Making of Alien 3 (1992) Dir.David Fincher - Behind the Scenes

YouTubeCinephoric

1.1K viewsJul 31, 2023

Alien 3: Story behind the Movie - Part 5 | David Fincher & H.R. Giger Enter the Chaos

Alien 3: Story behind the Movie - Part 5 | David Fincher & H.R. Giger Enter the Chaos

YouTubeAlien Vault

2.3K views1 month ago

The Moment Alien 3 Production SHUT DOWN 1991 | Alien 3: Story behind the Movie (part 8)

The Moment Alien 3 Production SHUT DOWN 1991 | Alien 3: Story behind the Movie (part 8)

YouTubeAlien Vault

1.8K views4 weeks ago

Top videos

New Tech Is Changing the UFO Hunt (S19, E17) | Ancient Aliens | Full Episode

New Tech Is Changing the UFO Hunt (S19, E17) | Ancient Aliens | Full Episode

111.5K views1 week ago

Forbidden Files of Extraterrestrial Contact (S1, E3) | Ancient Aliens | Full Episode

Forbidden Files of Extraterrestrial Contact (S1, E3) | Ancient Aliens | Full Episode

104.7K views3 days ago

The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens

The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens

5.9K views15 hours ago

Alien 3 Alternate Ending

Ripley's Alternate Fate in Alien: The Original Ending - Explained

Ripley's Alternate Fate in Alien: The Original Ending - Explained

YouTubeAlien Theory

499.6K viewsJan 9, 2022

Alien (1979) Mysteries: Alternative Endings

Alien (1979) Mysteries: Alternative Endings

YouTubeAlien Vault

20.6K views5 months ago

Alien Resurrection Deleted Scene: Alternate Ending

Alien Resurrection Deleted Scene: Alternate Ending

YouTuberipley8resurrection

2.2M viewsMay 22, 2010

New Tech Is Changing the UFO Hunt (S19, E17) | Ancient Aliens | Full Episode

New Tech Is Changing the UFO Hunt (S19, E17) | Ancient Aliens | Full Episode

111.5K views1 week ago

Forbidden Files of Extraterrestrial Contact (S1, E3) | Ancient Aliens | Full Episode

Forbidden Files of Extraterrestrial Contact (S1, E3) | Ancient Aliens | Full Episode

104.7K views3 days ago

The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens

The Strange Similarities Between Humans and Aliens (S1) | Ancient Aliens

5.9K views15 hours ago

Alien Conspiracy: They Are Here

Alien Conspiracy: They Are Here

9 views10 hours ago

YouTubeExtreme Mysteries

SHOCKING UFO MYSTERIES OF 2025 | Ancient Aliens *Full Episode Marathon*

SHOCKING UFO MYSTERIES OF 2025 | Ancient Aliens *Full Episode Marathon*

798.1K views5 months ago

UFO Mysteries Will Shock You! *Marathon* | Ancient Aliens | History

UFO Mysteries Will Shock You! *Marathon* | Ancient Aliens | History

756.7K viewsApr 14, 2025

Ancient Aliens: Extraterrestrial Legends & UFO Mysteries Revealed *3 Hour Marathon* | History

Ancient Aliens: Extraterrestrial Legends & UFO Mysteries Revealed *3 Hour Marathon* | History

2.6M viewsSep 17, 2024

Mysteries of Sacred Mountains | Ancient Aliens

133.6K views4 days ago

Secrets Hidden in Antarctica and Beyond *Marathon* | Ancient Aliens

71.6K views1 week ago

UFO Disclosure: Real or Engineered? with Captain Ron Janix | Unveiled Ep. 46

2.7K views4 days ago

YouTubeWatchMojo.com

Aliens and Extraterrestrial Life Claims Spark Global Buzz|Truth or Myth? |Mysterious Objects on Moon

1.1K views16 hours ago

YouTube92 News HD

Lost Civilizations Beneath Antarctica? | Ancient Aliens | History

8.3M views10 months ago

Ancient Aliens: 5 SHOCKING Mysteries Beneath Polar Ice | History

4.3M viewsMar 21, 2024

NEW: Declassified Apollo moon docs describe unexplained mysteries

133.9K views1 day ago

YouTubeFox News

Skeletons That Defy Human History | Ancient Aliens

69.1K views2 days ago

Ep 84 | Why Are The Nobles Acting So Strange? | Weakest Beast Tamer

1K views17 hours ago

YouTubePocket FM Fantasy

Are Curses Real or Just Imagination? (S4, E8) | The UnXplained | Full Episode

30.3K views1 week ago

শনির চাঁদ Enceladus এ লাইফ আছে?😱

49.8K views5 days ago

YouTubeMr. BonGrow Science

Unsolved Alien Mysteries: from Alaska's Pyramid to the Freemasons | Ancient Aliens

3.2M views8 months ago

Mysteries Hidden Under Alaskan Ice | Ancient Aliens | History

1.6M viewsApr 10, 2025

Biggest Discoveries Found on the Moon *Part 2* | Ancient Aliens | History

1.6M viewsJan 30, 2025

25 Universe Mysteries Scientists Are Still Scratching Their Heads Over

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Blue Alien With Massive Eyes That Stalked a Sleeping Soldier | David Wilcock & Emery Smith

8.5K views4 days ago

YouTubeAwaken Zone

15 SCARY Unsolved Mysteries That Will Make You Question Reality

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YouTubeUnexplained Mysteries

The Most Terrifying Extraordinary Alien & Cryptid Encounters! | Full Sci-Fi Documentary

7.7K views4 days ago

YouTubeSci-Fi Central

Inside the Mystery of the Greys | Ancient Aliens

1.2M views3 months ago

Outer Space’s Most Baffling Mysteries | Ancient Aliens | History

806.2K viewsMar 4, 2025

“4-FT ALIENS, HOT ORBS”? Newly Released UFO Files Reveal Chilling Memo And Strange Encounters

5.9K views18 hours ago

YouTubeMIRROR NOW

The UFO Incident That Sparked a Global Debate | Alien Files Reopened 107

YouTubeMagellanTV

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