Galaxy Quenching
Radiolab
08/01/25
•40m
About
Comments
Featured In
This week: the story of astrophysicist Charity Woodrum. Charity is an extragalactic astronomer who studies the life and death of galaxies, why some galaxies burn bright and others dim and sputter out. And in the midst of an unthinkable grief in her personal life, she discovers something in the sky – a new kind of light that would guide her path forward.
Special thanks to Megan Stielstra, Jad Abumrad, Michael Woodrum, Gina Vivona, and Clair Reilly-Roe.
EPISODE CREDITS:
Reported by - Lulu Miller
Produced by - Jessica Yung
Fact-checking by - Diane Kelly
Radiolab | Lateral Cuts:
Our episode The Darkest Dark (https://radiolab.org/podcast/the-darkest-dark) could be of interest to those seeking the deepest unknowns.
EPISODE CITATIONS:
Music -
Clair Reilly-Roe’s song “Sky Full of Ghosts” (https://zpr.io/JgauhRnj7qpX)
Articles -
A new documentary on Charity Woodrum’s story: Space, Hope and Charity (https://www.spacehopecharityfilm.com/)
Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!
Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today.
Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org.
Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
Previous Episode
The Nothing Behind Everything
July 25, 2025
•32m
This week, two conversations from the archives about parts of the world that are imperceptible to us, verging on almost unthinkable. We start with a moment of uncertainty in physics. Inspired by an essay written by physicist and novelist Alan Lightman, called The Accidental Universe (https://zpr.io/4965dUdNqtpQ), taken from a book of the same name. Former Radiolab co-host Robert Krulwich pays a visit to Brian Greene to ask if the latest developments in theoretical physics spell a crisis for science. He finds that we've reached the limit of what we can see and test, and we’re left with mathematical equations that can't be verified by experiments or observation.
Then, come along as we kick rocks. And end up tumbling down a philosophical rabbit hole where the solid things around us might not be solid at all. We talk to Jim Holt, author of Why Does the World Exist? (https://zpr.io/UqHpLnDx2QNx) who points out that when you start slicing and sleuthing in subatomic particle land, trying to get to the bottom of what makes matter, you mostly find empty space. Your hand, your chair, the floor, it's all made up of mostly nothing. Robert and Jim go toe-to-toe over whether the universe is made up of solid bits and pieces of stuff, or a cloudy foundation that more closely resembles thoughts and ideas.
Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!
Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today.
Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org.
Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
Next Episode
The Menopause Mystery
August 8, 2025
•38m
Until recently, scientists assumed humans were the only species in which females went through menopause, and lived a substantial part of their lives after they were no longer able to reproduce. And they had no idea why that happens, and why evolution wouldn’t push females to keep reproducing right up to the end of their lives. But after a close look at some whale poop, and a deep dive into chimp life, we find several new ways of thinking about menopause and the real purpose of this all too often overlooked second act of life.
Special thanks to Danielle Friedman, Rachel Gross, and Kate Radke.
EPISODE CREDITS:
Reported by - Heather Radke and Becca Bressler
Produced by - Sarah Qari and Becca Bressler
Fact-checking by - Emily Krieger
and Edited by - Becca Bressler
EPISODE CITATIONS:
Books -
Check out everything Heather Radke writes, including Butts: A Backstory, cause it’s all that good, here: Heather Radke (www.heatherradke.com).
Find any one of Lucy Cooke’s book, including Bitch:On the Female of the Species, here: Lucy Cooke (http://www.lucycooke.tv/)
And check out everything Caroline Paul has on offer, including Tough Broad, here: Caroline Paul (https://www.carolinepaul.com/)
Socials -
Heather Radke: https://www.instagram.com/radhradke
Lucy Cooke: https://www.instagram.com/luckycooke/
Audio:
Becca Bressler’s greatest hits-
Bloc Party
Our Stupid Little Bodies
Gigaverse
Radiolab | Lateral cuts -
Butt Stuff
Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!
Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today.
Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org.
Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
If you like this episode you’ll love
Promoted