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