Alien Mysteries Episodes - Search Videos

UFOs Beneath the Ocean & More Mysteries of the Deep (S19, E19) | Ancient Aliens | Full Episode

UFOs Beneath the Ocean & More Mysteries of the Deep (S19, E19) | Ancient Aliens | Full Episode

We're counting down the top ten mysteries of the deep, from sunken continents to puzzling ruins on the ocean floor and even artifacts that might be remnants of Atlantis. In Season 19, Episode 19, "The Top Ten Mysteries of the Deep." Stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule # ...

57.5K views4 days 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

Filming Disaster & Studio Chaos | Alien 3: Story behind the Movie (part 7)

Filming Disaster & Studio Chaos | Alien 3: Story behind the Movie (part 7)

YouTubeAlien Vault

2.5K views1 month ago

Alien 3 Takes a Dark, Violent Turn | Alien 3: Story behind the Movie (Part 2)

Alien 3 Takes a Dark, Violent Turn | Alien 3: Story behind the Movie (Part 2)

YouTubeAlien Vault

3.7K views3 months ago

Top videos

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

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

834.5K views5 months ago

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

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

778.2K viewsApr 14, 2025

UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation

UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation

162.7K views5 days 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

499.7K viewsJan 9, 2022

Alien (1979) Mysteries: Alternative Endings

Alien (1979) Mysteries: Alternative Endings

YouTubeAlien Vault

21.7K views5 months ago

HBO Max Just Dropped the Controversial Allien Movie Fans Missed

HBO Max Just Dropped the Controversial Allien Movie Fans Missed

YouTubeNerd Town

789 views1 month ago

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

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

834.5K views5 months ago

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

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

778.2K viewsApr 14, 2025

UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation

UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation

162.7K views5 days ago

UFOs Unlocked: Inside the Pentagon’s secret files | This Is America

UFOs Unlocked: Inside the Pentagon’s secret files | This Is America

37.4K views5 days ago

YouTubeAl Jazeera English

Are These Two Objects CURSED?! (S1, E9) | Found | Full Episode | The UnXplained Zone

Are These Two Objects CURSED?! (S1, E9) | Found | Full Episode | The UnXplained Zone

14 views16 hours ago

YouTubeThe UnXplained Zone

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

The Most Disturbing Discovery Yet 😨 (S7) | The Secret of Skinwalker Ranch

The Most Disturbing Discovery Yet 😨 (S7) | The Secret of Skinwalker Ranch

43.6K views22 hours ago

Have Aliens Been Visiting Earth for Millions of Years? | Ancient Aliens | History

6.9M viewsApr 3, 2025

Ancient Aliens: 5 SHOCKING Mysteries Beneath Polar Ice | History

4.3M viewsMar 21, 2024

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

3.2M views8 months ago

Ancient Aliens: TOP UFO MYSTERIES OF 2025 | Part 1

392.8K views5 months ago

Ancient Aliens: Shocking Mysteries from Beyond *Marathon* | History

318.1K viewsApr 21, 2025

America ने आखिर UFO सच क्यों माना? | UAP Files Full Story | NASA | Pentagon

135.6K views5 days ago

YouTubeKhabargaon

UFO FILES: Scientist believes FOUR types of alien life have been found

747K views2 days ago

YouTubeFox News

Lost Civilizations Beneath Antarctica? | Ancient Aliens | History

8.5M views10 months ago

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

1.6M viewsJan 30, 2025

Revisiting the Ranch’s Wildest Events | The Secret of Skinwalker Ranch

112.8K views1 week ago

3 Unexplained Paranormal Mysteries | The Secret of Skinwalker Ranch

110K views4 days ago

காதுக்குள் ரீங்காரமிடும் மர்ம சத்தம்! US -ஐ அலறவிடும் The Taos Hum 🔊 | The Logic | Mystery

9.1K views6 days ago

YouTubeVikatan TV

Inside the Mystery of the Greys | Ancient Aliens

1.5M views3 months ago

UFO FILES: Video of reported ‘flying saucer’ could soon be released

108.2K views12 hours ago

YouTubeFox News

Humanity’s Greatest Unexplained Mysteries | Ancient Aliens

333.4K views3 months ago

The Moon's Mysteries Revealed | Ancient Aliens | History

1.4M viewsApr 8, 2025

Ancient Aliens: Mystic Mysteries of the Mayans | History

1M viewsApr 4, 2024

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

778.9K viewsMar 4, 2025

Groundbreaking & Unexplainable Technology | Ancient Aliens | History

2M views11 months ago

Neil deGrasse Tyson reveals what would confuse an alien

17K views4 days ago

YouTubeFox News

MST3K Presents: Wasteland Wednesday | Vol II

15.9K views1 week ago

YouTubeMYSTERY SCIENCE THEATER 3000

The Moon's Profound Secrets (S2, E17) | The UnXplained | Full Episode | History

1.3M viewsFeb 27, 2025

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