The End of Everything (Astrophysically Speaking)

How, exactly, will the universe come to the end? Find out all the possible endings with the SciFri Book Club pick this April.

illustrated stack of books with text "scifri book club"Welcome to the SciFri Book Club page about The End of Everything (Astrophysically Speaking) by Katie Mack. There’s lots of ways to participate: Read the book, join our community space, attend an event, sign up for our email newsletter, or send a message on the SciFri VoxPop app.


This April, the SciFri Book Club is reading The End of Everything (Astrophysically Speaking) by Katie Mack. Join us on a tour through five possible endings of the universe as we know it—the Big Crunch, Heat Death, the Big Rip, Vacuum Decay, and the Bounce—and which ones could technically happen at any moment. Through upbeat, elegantly explained science, Mack leads readers through how astrophysicists retrace the past and peer into our future.

The End of Everything (Astrophysically Speaking) brings together a range of topics, including astrophysics, space, history, cosmology and more—and we’ll touch on these ideas throughout this Book Club season. You can get your copy from your local bookstore or on

This Book Club season kicks off Monday, April 1, and you can read along with us! We’ll be (loosely) following this schedule, but all our readers are welcome to join us at their own pace:

  • April 1-7: Chapters 1-2
  • April 8-14: Chapters 3-4
  • April 15-21: Chapters 5-6
  • April 22-30: Chapters 7-8 + Final Thoughts

Plus, we’ll be hosting events throughout the month! Keep an eye out on our website or join our Events newsletter to be the first to know.

There are so many ways to dive in and participate! You can grab a copy of the book (and support the author and SciFri), read an excerpt from The End of Everything (Astrophysically Speaking), join the discussion in our online Book Club community, sign up for our email newsletter, or RSVP for our upcoming Book Club events. Check out all the details below.

Grab Your Own Copy

If you’d like to purchase a physical copy, we encourage you to start local! Check out the SciFri Book Club partner bookstores and libraries—if you’re in the area, consider supporting your local bookseller or public library (plus, mention our Book Club for a percentage off your purchase at participating shops!).

Our Partners

Want more ways to read? This book is available in a few formats via online retailers, your local library, or elsewhere:

Your local library may not currently have The End of Everything (Astrophysically Speaking) in its catalog, but many branches offer ways for patrons like you to submit book suggestions to librarians. Look for ways to suggest new titles via the Libby or OverDrive app, a form submission on your library’s website, or a suggestion box at your local branch!

Save The Date(s): SciFri Book Club Events

Event promotional image. In the top left corner, SciFri Book Club logo, with event info below, which reads: "The End of Everything: Author Livestream and Q&A. April 26, 12:00pm ET, Online + Free," The middle features the book cover of THE END OF EVERYTHING, and headshot the author, a white woman smiling and looking to the right. The background is an image of a starry sky swirling towards a black hole in the middle.

The End of Everything: Author Livestream and Q&A

How many ways could the universe actually, realistically end? (At least 5!) Will we even be around to witness the moment? (Probably not, but maybe!) Come noodle on the universe’s inevitable end with astrophysicist and author Katie Mack.

RSVP for April 26

Join us online for a livestream with the author on the science topics featured in the SciFri Book Club pick for April 2024. Come with your queries and wonderings—we’ll be taking your questions in the livestream comments!

The book cover of THE END OF EVERYTHING to the left, with an image of the Earth from orbit and stars above as the background. The logo for the SciFri Book Club in the bottom right corner.

SciFri Book Club April community meeting: The End of Everything (Astrophysically Speaking)

Want to meet other SciFri Book Club members, talk about the book selection, and find more resources for deeper learning—all without leaving your home? Our community meeting is the place for you!

RSVP for April 29

This discussion meeting will focus on themes and topics featured in The End of Everything (Astrophysically Speaking). You’re welcome to join us no matter your reading progress—come chat with other science-interested folks about astrophysics, space, history, cosmology and more.

Join Our Community Space

And as you start reading, join us on our online community space: the SciFri Book Club is on Mighty Networks, a platform where we can gather, read and discuss science books together. We’ve built this community space to create a better way for readers to stay connected with other Book Clubbers, and we hope you’ll join us there!

Join Our Community

Read An Excerpt

Not sure this is the book for you? Want to read an excerpt before you commit? We’ve got you covered.

Scribner, publisher for The End Of Everything (Astrophysically Speaking), has offered SciFri Book Clubbers an excerpt of the book! You can read this sample on our website.

Read The Excerpt

Sign Up For Our Newsletter

Subscribe to SciFri Book Club emails to stay updated on our monthly read sand join us for community discussions. We’ll send emails a few times per week.


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