Extraterrestrial
The First Sign of Intelligent Life Beyond Earth
A scientific memoir and argument by Harvard astrophysicist Avi Loeb proposing that the interstellar object 'Oumuamua was likely a piece of alien technology. The book outlines his hypothesis, challenges the scientific community's reluctance to seriously consider extraterrestrial artifacts, and advocates for a more open-minded approach to astronomical anomalies.
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Ranked #412 of 1942 · 256 pages · Published 2021
Mentioned 2× on The Joe Rogan Experience across 2 episodes, most recently on Oct 28, 2025.
Fight Record
Every episode where this book came up, newest first. Timestamps are approximate; each mention links to its source.
Mentioned by Avi Loeb · 00:58:43 · ▶︎ Watch this moment on YouTube (approximate) · Source: Transcript (podscripts.co)
Mentioned by Avi Loeb · 00:10:26 · ▶︎ Watch this moment on YouTube (approximate) · Source: Official episode description (podcast RSS), Transcript (podscripts.co)
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Data last updated · Report a mistake · How it works: mentions are pulled from public transcripts and episode descriptions, partly with AI-assisted extraction, so details and timestamps can be off.
Book data: ISBN 9780358394570. Page count from Open Library (median of editions). Cover via Open Library Covers.