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76 ratings | 23 reviews | avg rating:4.43

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Stephen Perrenod

Goodreads Author

Born

in Natchez, The United States

Website

http://www.darkmatterdarkenergy.com

Twitter

perrenod

Member Since

April 2013

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I write books that explain the universe, and where it is headed, to non-astrophysicists,
in a manner that is easier to understand than Stephen Hawking.

Ph.D. astrophysics Harvard
30+ years as a supercomputing / high performance computing expert

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Combine Editions
Stephen Perrenod’s books

Average rating: 4.03 · 34 ratings · 4 reviews · 2 distinct works

	Dark Matter, Dark Energy, Dark Gravity: Enabling a Universe that Supports Intelligent Life 4.03 avg rating — 34 ratings — published 2011 — 4 editions	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	72 Beautiful Galaxies 0.00 avg rating — 0 ratings — 3 editions	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars

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Stephen Perrenod's Blog

A Billion-Year Triple Merger

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These three galaxies are expected to merge over the next billion years. The ensemble is known as SDSS J084905.51+111447.2. Credit SDSS & NASA/STScI

This gravitationally bound triplet of active galaxies is at redshift of z = 0.077, corresponding to a distance of around 1 billion light-years.

They have been studies in the near-infrared, optical, and X-ray portions of the spectrum, and

Stephen is Currently Reading

Stephen Perrenod is currently reading

The Oldest Rocks on Earth: A Search for the Origins of Our World

by Simon Lamb

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Jul 09, 2026 07:58PM

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Why Stock Markets Crash: Critical Events in Complex Financial Systems

by Didier Sornette

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Jun 16, 2025 08:51PM

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Churchill: The Power of Words: His remarkable life recounted through his writings and speeches

by Winston S. Churchill

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Feb 06, 2025 05:48AM

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Stephen Perrenod rated a book it was amazing Ringworld (Ringworld #1) by Larry Niven	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Jul 12, 2026 10:48PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Ringworld by Larry Niven. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Ringworld by Larry Niven <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod is 61% done with Dark Money Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right by Jane Mayer progress:	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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Stephen Perrenod rated a book it was amazing Proof of Conspiracy by Seth Abramson (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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Stephen Perrenod rated a book really liked it The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes by Paul Halpern (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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Stephen Perrenod started reading The Oldest Rocks on Earth: A Search for the Origins of Our World by Simon Lamb	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Jul 09, 2026 07:58PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Oldest Rocks on Earth by Simon Lamb. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Oldest Rocks on Earth by Simon Lamb <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod finished reading The Universal Timekeepers: Reconstructing History Atom by Atom by David Helfand	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
Jul 09, 2026 07:58PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Universal Timekeepers by David Helfand. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Universal Timekeepers by David Helfand <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod finished reading Caste: The Origins of Our Discontents by Isabel Wilkerson (Goodreads Author)	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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Stephen Perrenod wants to read God Is Not Great: How Religion Poisons Everything by Christopher Hitchens	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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Stephen Perrenod rated a book it was amazing Bitcoin One Million: The Final Chapter of Fiat by Fred Krueger	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
it’s all so logical Fred and Ben lay it all out very clearly and with a comprehensive perspective. I heartily concur with their general views and outlook around the inevitability of Bitcoin as the world’s first scientifically precise standard for mone ...more
Mar 01, 2026 04:55PM · like · see review
Stephen Perrenod rated a book really liked it Ubik by Philip K. Dick	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
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