Out Of This World Extraterrestrials | Ancient Aliens

Explore the possibilities of time travel, alternate dimensions, and portals in this mega-compilation. Find out more about the show and watch full episodes on our site: "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years. The HISTORY®...

38 min - Space & the Universe - HISTORY

More: Searching for Aliens documentaries

Read Deeper: Searching for Aliens

1. The Eerie Silence by Paul Davies - View on Amazon
2. Extraterrestrial by Avi Loeb - View on Amazon
3. Rare Earth by Peter Douglas Ward - View on Amazon
4. The Smallest Lights in the Universe by Sara Seager - View on Amazon
5. Strange New Worlds by Ray Jayawardhana - View on Amazon

Watch Next

• Alien (Featuring Will Smith) | Full Episode | One Strange Rock (47 min, National Geographic)
• What Happens If We’re Contacted By Aliens? (51 min, Spark)
• Is There A Simple Solution To The Fermi Paradox? (21 min, PBS Space Time)
• There Are Thousands of Alien Empires in The Milky Way (14 min, Kurzgesagt)
• Why Aliens Might Already Be On Their Way To Us (11 min, Kurzgesagt)
• Are There Lost Alien Civilizations in Our Past? (10 min, Kurzgesagt)
• Why We Should NOT Look For Aliens - The Dark Forest (11 min, Kurzgesagt)
• What Do Alien Civilizations Look Like? The Kardashev Scale (12 min, Kurzgesagt)