Extraterrestrial Civilizations

10:42

What Do Alien Civilizations Look Like? The Kardashev Scale
Kurzgesagt – In a Nutshell
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42:21

Ancient Aliens: The Other Earth (S10, E6) | Full Episode
HISTORY
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10:29

Are There Lost Alien Civilizations in Our Past?
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18:19

Different Alien Species That We Know Exist| Episode 1 | ASTRAL LEGENDS
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388K views
1:06:10

Alien Civilizations: How Advanced Could They Be?
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42:22

Ancient Aliens: Civilization Buried Under Antarctica's Ice?! (S14, E1) | Full Episode
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898K views
33:12

Why We May Be Surrounded by Older Alien Civilizations
Cool Worlds
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15:35

Steven Greer: Extraterrestrial Civilizations, Dimensions & Types of 'Aliens'
PortalToAscension
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1:00

The Future of Space Exploration Humanity’s Cosmic Journey
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433 views
6:23

The four types of planetary civilizations, explained by Michio Kaku
Big Think
620K views
5:24

Ancient Aliens: Mars Rover Captures Evidence of Lost Civilization?! (Special)
HISTORY
1M views
14:39

There May Be More Than 36 Alien Civilizations In The Milky Way!
Insane Curiosity
27K views
13:17

Alien civilizations from level 1 to level 7. We are only at level 0.72
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10:12

How Many Alien Civilizations Exist in Our Galaxy?
Science Time
648K views
13:44

PLEAIDIANS Describe Extraterrestrial Races In Our Galaxy
Gaia
742K views
18:46

The Most Advanced Civilization That Scares Scientists
Fexl
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10:05

Brian Cox - Alien Civilizations Decoded
Science Time
156K views
13:59

There Are Thousands of Alien Empires in The Milky Way
Kurzgesagt – In a Nutshell
5.9M views
1:21:06

Why Can't We See Evidence of Alien Life? | Documentary
Space Matters
1.3M views
3:47:10

David Kipping: Alien Civilizations and Habitable Worlds | Lex Fridman Podcast #355
Lex Fridman
10M views
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