70 ratings | 22 reviews | avg rating:4.43

Stephen’s Year In Books

Stephen’s 2024 Year in Books

Take a look at Stephen’s Year in Books, including some fun facts about their reading.

Go to Stephen’s 2024 Year in Books

Stephen Perrenod’s Followers (7)

Stephen’s Bookshelves

to-read (13)
currently-reading (14)
read (110)

Stephen’s Friends (32)

Kerry Kennedy

920 books | 1,056 friends

Benjamin

1,080 books | 57 friends

Cathryn

891 books | 101 friends

Meghan

576 books | 31 friends

Thomas O. Scarborough

147 books | 3,117 friends

Lisa

113 books | 24 friends

Todd Sherman

155 books | 35 friends

Bryan Kornele

2,427 books | 38 friends

More friends…

Stephen Perrenod

Goodreads Author

Born

in Natchez, The United States

Website

http://www.darkmatterdarkenergy.com

Twitter

perrenod

Member Since

April 2013

edit data

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

Learn more
Ask the Author

To ask Stephen Perrenod questions, please sign up.

Combine Editions
Stephen Perrenod’s books

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

	Dark Matter, Dark Energy, Dark Gravity 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.

19 posts
Stephen Perrenod's Blog

A Billion-Year Triple Merger

[image error]

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 Gold Standard: An Alternative History of the Twentieth Century

by Saifedean Ammous (Goodreads Author)

bookshelves: currently-reading

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

Nov 13, 2025 09:35PM

Stephen Perrenod is currently reading

Why Stock Markets Crash: Critical Events in Complex Financial Systems

by Didier Sornette

bookshelves: currently-reading

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

Jun 16, 2025 08:51PM

Stephen Perrenod is currently reading

Caste: The Origins of Our Discontents

by Isabel Wilkerson (Goodreads Author)

bookshelves: currently-reading

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

Jun 16, 2025 08:50PM

rss
Stephen’s Recent Updates

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
11 hours, 0 min ago · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Fiat Standard by Saifedean Ammous. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Fiat Standard by Saifedean Ammous <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod is 30% done with The Gold Standard The Gold Standard: An Alternative History of the Twentieth Century by Saifedean Ammous (Goodreads Author) 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
11 hours, 0 min ago · like · see status · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Gold Standard by Saifedean Ammous. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Gold Standard by Saifedean Ammous <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod finished reading 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
11 hours, 1 min ago · like
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
Nov 13, 2025 09:35PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Gold Standard by Saifedean Ammous. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Gold Standard by Saifedean Ammous <iframe sandbox id="wrongBookKindlePreviewScreen">
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
Sep 12, 2025 06:18PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of If Anyone Builds It, Everyone Dies by Eliezer Yudkowsky. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — If Anyone Builds It, Everyone Dies by Eliezer Yudkowsky <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod is currently reading Why Stock Markets Crash: Critical Events in Complex Financial Systems by Didier Sornette	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
Jun 16, 2025 08:51PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Why Stock Markets Crash by Didier Sornette. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Why Stock Markets Crash by Didier Sornette <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod started 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
Jun 16, 2025 08:50PM · like
Stephen Perrenod started 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
Jun 16, 2025 08:50PM · like
Stephen Perrenod has read The Arrow Impossibility Theorem (Kenneth J. Arrow Lecture Series) by Eric Maskin	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
Jun 16, 2025 08:47PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of The Arrow Impossibility Theorem by Eric Maskin. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — The Arrow Impossibility Theorem by Eric Maskin <iframe sandbox id="wrongBookKindlePreviewScreen">
Stephen Perrenod rated a book it was amazing Bitcoin Age by Nik Bhatia (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
Jun 16, 2025 08:47PM · like · preview book See a Problem? We’d love your help. Let us know what’s wrong with this preview of Bitcoin Age by Nik Bhatia. Problem: Details (if other): Thanks for telling us about the problem. Not the book you’re looking for? Preview — Bitcoin Age by Nik Bhatia <iframe sandbox id="wrongBookKindlePreviewScreen">