SETI Explained - How We Search for Alien Civilizations (Narration Only)

Explore SETI’s history and modern methods—from radio and laser searches to Dyson spheres and technosignatures—and how we might detect alien civilizations across the galaxy.

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Credits:

SETI Explained - How We Search for Alien Civilizations

Written, Produced & Narrated by: Isaac Arthur

Graphics from Ken York, Sergio Botero

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

0:50 Why SETI Is Harder Than It Sounds

2:50 The Birth of SETI

6:15 Why Radio SETI Made Sense—and Why It Didn’t Work

9:34 The Shift in Perspective

10:55 Laser SETI

13:52 Dysonian SETI

16:59 Signals, Artifacts, and Echoes

19:09 Recognition Is Harder Than Detection

21:30 Gods & Monsters

22:30 What SETI Looks Like Today

25:18 SETI as a Mirror, Not a Phone Call

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