Have astronomers discovered an alien megastructure?
4:15
Find in video from 02:00Speculation on Alien Superstructure
Have astronomers discovered an alien megastructure?
3.6M viewsOct 16, 2015
YouTubeCBS News
What NASA Knows About Mars | Ancient Aliens
41:19
What NASA Knows About Mars | Ancient Aliens
551.5K views4 months ago
YouTubeHISTORY
New study finds potential alien mega-structures known as 'dyson spheres'
5:15
New study finds potential alien mega-structures known as 'dyson spheres'
6M viewsJun 14, 2024
YouTubeNBC News
UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation
27:15
UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation
384.6K views1 month ago
YouTubeHISTORY
Extraterrestrial Moon Bases: Strange Evidence Explained | Ancient Aliens (S1, E11) | Full Episode
42:17
Extraterrestrial Moon Bases: Strange Evidence Explained | Ancient Aliens (S1, E11) | Full Episode
3.7M views11 months ago
YouTubeHISTORY
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens | History
23:35
Space Secrets and NASA’s Role in the Alien Agenda | Ancient Aliens | History
272.8K views10 months ago
YouTubeHISTORY
'Hostile': Why scientists believe alien spacecraft is headed for Earth
3:49
'Hostile': Why scientists believe alien spacecraft is headed for Earth
101.1K views10 months ago
YouTubenews.com.au
1:05:08
Find in video from 13:01The Alien face in Antarctica
Alien Artifacts - The Outer Dimensions (Full Documentary)
235.1K viewsJun 17, 2023
YouTubeExtreme Mysteries
40:08
How Were These Mysterious Structures Built?! | Ancient Aliens | History
2.1M viewsFeb 18, 2025
YouTubeHISTORY
24:20
Alien Influence in Ancient Architecture | Ancient Aliens
140.5K views1 month ago
YouTubeHISTORY
0:55
A Mysterious Square "ALIEN" Structure on Mars? 🪐🔴👽
352.6K viewsFeb 14, 2025
YouTubeStarTalk
2:56:33
The Universe: Explore the Alien Worlds of Outer Space *3 Hour Marathon* | History
5.3M viewsOct 15, 2023
YouTubeHISTORY
44:23
The Universe: UFOs Caught Visiting Earth (S6, E6) | Full Episode | History
6M viewsNov 11, 2022
YouTubeHISTORY
2:07
Secret 'immovable' UFO is 'hiding in plain sight' in purpose-built structure
85.4K views4 months ago
YouTubeThe Sun
4:38
Mysterious Alien Structures Shock the World (Season 21) | Ancient Aliens | History
37.8K viewsApr 12, 2025
YouTubeHISTORY
19:50
TOP MEGALITHIC STRUCTURES REVEALED | Ancient Aliens | History
94.4K viewsDec 22, 2024
YouTubeHISTORY
1:14:22
Alien Moon (Full Documentary)
174.3K viewsJun 22, 2023
YouTubeExtreme Mysteries
5:02
Ancient Aliens: Mysterious Stone Structures Transmit Alien Energy (Season 15) | History
54.4K viewsNov 19, 2024
YouTubeHISTORY
21:24
Ancient Aliens: Did Aliens Build a Global Energy Grid? | History
653.4K viewsAug 29, 2024
YouTubeHISTORY
1:00:21
Moon Mysteries | NASA's Unexplained Files | Science Channel
1.4M views11 months ago
YouTubeScience Channel
18:16
Biggest Discoveries Found on the Moon *Part 2* | Ancient Aliens | History
1.6M viewsJan 30, 2025
YouTubeHISTORY
4:24:27
Superstructures: Largest Structures in the World | MEGA EPISODE | National Geographic
244.3K viewsJun 8, 2025
YouTubeNational Geographic
4:40
Ancient Aliens: UFOs Spotted in Antarctica (Special) | History
5.4M viewsNov 21, 2023
YouTubeHISTORY
34:00
Inside Look At Area 51 *New Theories Revealed!* | Ancient Aliens | History
10.3M viewsApr 22, 2025
YouTubeHISTORY
53:05
Find in video from 27:00James Webb Space Telescope
Encounters with UFOs; Search for ancient life on Mars; James Webb …
3.7M viewsJul 29, 2023
YouTube60 Minutes
5:24
Find in video from 03:18Similarities Between Mars and Earth Structures
Ancient Aliens: Mars Rover Captures Evidence of Lost Civiliza…
1.5M viewsDec 2, 2023
YouTubeHISTORY
8:32
Is an Alien Spacecraft Hiding in the Kuiper Belt? | NASA's Unexplained Files
3.5M viewsJun 9, 2021
YouTubeScience Channel
9:01
Find in video from 01:02The International Space Station
4 Cosmic Megastructures... from Orbital To Stellar | Unveiled
30.1K viewsFeb 22, 2021
YouTubeUnveiled
9:01
Find in video from 00:54The International Space Station
4 Theoretical Megastructures from Big To MASSIVE
18.5K viewsNov 27, 2023
YouTubeWatchMojo.com
See more
Static thumbnail place holder