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Stephen’s Year In Books

Stephen’s 2025 Year in Books

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Cathryn

923 books | 110 friends

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1,314 books | 1,061 friends

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510 books | 31 friends

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106 books | 24 friends

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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

* Note: these are all the books on Goodreads for this author. To add more, click here.

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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

Why Stock Markets Crash: Critical Events in Complex Financial Systems

by Didier Sornette

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Jun 16, 2025 08:51PM

Stephen Perrenod is currently reading

Caste: The Origins of Our Discontents

by Isabel Wilkerson (Goodreads Author)

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Jun 16, 2025 08:50PM

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The Universal Timekeepers: Reconstructing History Atom by Atom

by David Helfand

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Jun 16, 2025 08:50PM

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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
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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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Stephen Perrenod wants to read 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
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Stephen Perrenod rated a book really liked it The Gold Standard: An Alternative History of the Twentieth Century by Saifedean Ammous (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 has read The Fiat Standard: Debt Slavery Alternative to Human Civilization by Saifedean Ammous (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 is currently reading The Gold Standard: An Alternative History of the Twentieth Century by Saifedean Ammous (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 If Anyone Builds It, Everyone Dies: Why Superhuman AI Would Kill Us All by Eliezer Yudkowsky (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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