Stellar

Is This Why We Haven’t Found Alien Civilizations?

Episode 5 | 8m 50s Video has closed captioning.

Looking up at the stars makes you wonder: what and who is out there? And why haven’t we seen any other intelligent civilizations given the vast size and age of the universe?

Aired: 07/26/19

Rating: NR

From:

Problems Playing Video? | Closed Captioning

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