Why This Universe? - podcast cover

Why This Universe?

Dan Hooper, Shalma Wegsmanwww.shalmawegsman.com
The biggest ideas in physics, broken down. Join theoretical physicist Dan Hooper and co-host Shalma Wegsman as they answer your questions about dark matter, black holes, quantum mechanics, and more. Part of The University of Chicago Podcast Network.

Episodes

92 - What Cosmology Has in Store for 2025 (Ft. Dan Scolnic)

Learn what exciting cosmology results and potential discoveries await us in 2025! For exclusive ask-us-anything episodes, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Jan 13, 202546 minEp. 93

91 - What Neutrinos Reveal About the Milky Way

A discovery last year reveals our galaxy in a whole new light - except it's not light, it's neutrinos! Learn what this discovery can teach us about the Milky Way and beyond. For exclusive ask-us-anything episodes, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Dec 23, 202431 minEp. 92

90 - Quintessence: Is Dark Energy Changing? (Ft. Sean Carroll)

Is it possible that dark energy is not a constant, but rather is changing over time? Sean Carroll talks to us about how our understanding of dark energy evolved in recent history, and what is still left unknown. For exclusive ask-us-anything episodes, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Nov 04, 202442 minEp. 90

89 - A Dark Matter Vibe Check

Dan and Shalma have a candid conversation about the state of dark matter research, and the ways the field has changed over the last few years. For exclusive ask-us-anything episodes, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Oct 14, 202437 minEp. 91

88 - Why Does Our Universe Exist At All? (Ft. Sean Carroll)

Why does something exist, rather than nothing? Special guest Sean Carroll helps us explore this deep philosophical question. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Sep 23, 202428 minEp. 90

87 - The Good and the Bad of Peer Review

There has been some criticism of the process scientists use to check each other's work. Today we take a deep dive into peer review to determine how broken it really is. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse. Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Sep 02, 202440 minEp. 89

28 - How Noether's Theorem Changed Physics (Rerun)

Learn how Noether's profound mathematical theorem relating symmetries to conservation laws is deeply woven into the physics of the universe. Enjoy this rerun of an earlier episode as we take our summer break. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Aug 05, 202424 minEp. 88

86 - The Life and Death of Stars

We explore the diverse world of stars in the universe, from those similar to our Sun to those totally unrecognizable. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Jul 02, 202441 minEp. 86

85 - Our Sun: Present, Past and Future

Today's episode is all about the star in our front yard - the sun. Learn how it came to be, how it has changed, and how will it change in the future. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Jun 17, 202437 minEp. 87

84 - The Search For New Worlds (ft. Josh Winn)

Hear how the search for exoplanets has developed, and what surprises it has brought so far. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Jun 03, 202445 minEp. 86

83 - Witnessing a Revolution in Particle Physics (Ft. Chris Quigg)

Today we hear from someone who bore witness to the so-called “November Revolution” of particle physics in 1974. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

May 13, 202432 minEp. 83

82 - Science Vs. Pseudoscience

Pseudoscience can sometimes be hard to distinguish from the real thing. Today we discuss how philosophers of science have thought about this problem. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Apr 29, 202436 minEp. 82

81 - Ancient Greek Astronomy

The first episode in a new mini-series on philosophical problems in cosmology - Today we start with the origins of Western science and learn what the ancient Greeks thought about the cosmos. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Apr 15, 202443 minEp. 81

80 - (April Fools 2024) A Surprising Discovery Shaking Up Modern Cosmology

Hear how a recent discovery of the motions of galaxies is changing how cosmologists are thinking about our universe. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Apr 01, 202417 minEp. 80

79 - NanoGRAV's Big Gravitational Wave Discovery (Ft. Chiara Mingarelli)

Last year, an experiment called NanoGRAV made a surprising discovery of gravitational waves using pulsars around the universe. Special guest Chiara Mingarelli explains. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe

Mar 18, 202441 minEp. 79

78 - The Life of a Science Journalist (Ft. Katrina Miller)

What's it like bringing science to the most general public audiences? How do you distill complex results into short news-worthy articles without getting lost in clickbait? Today we hear the perspective of New York Times science journalist Katrina Miller. For ad free episodes and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Our merch is available here: https://www.shalmawegsman.com/why-this-universe Support the show...

Mar 04, 202439 minEp. 78

77 - All About Quantum Computing (Ft. Henry Lamm)

Quantum computing makes big promises, but how does it work? What is the real state of quantum computing today? Special guest Henry Lamm answers our questions. Our new merch is available here: https://www.shalmawegsman.com/why-this-universe For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Feb 05, 202441 minEp. 77

76 - Do We Live in a Simulation?

Is the world around us real, or are we living in someone's computer program? Our new merch is available here: https://www.shalmawegsman.com/why-this-universe For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Jan 22, 202438 minEp. 76

75 - Physics in Extreme Locations (Ft. Daniel Baxter & Alexandra Rahlin)

We hear two physicists describe their lives collecting data in remote locations, from deep underground in an active mine and from the South Pole. Our new merch is available here: https://www.shalmawegsman.com/why-this-universe For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Jan 08, 202442 minEp. 75

8 - Is Space Flat or Curved?

Learn how the geometry of space defies our intuition, and why it gave Einstein so much anxiety. Our new merch is available here: https://www.shalmawegsman.com/why-this-universe For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Dec 18, 202324 minEp. 85

74 - The Copernican Revolution (Ft. Aviva Rothman)

Today we visit a turning point in the history of science: the discovery that the Earth is not at the center of the cosmos. Our new merch is available here: https://www.shalmawegsman.com/why-this-universe For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Dec 04, 202359 minEp. 74

72 - The Physics Of Music (Ft. Tim Cohen)

Where does the musical octave come from? What makes a C note a C? Why do different instruments sound different? Special guest Tim Cohen comes on to answer these questions and more. For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Nov 06, 202344 minEp. 72

71 - How the Universe Got Its Structure

We tell the story of how the Universe developed large scale structure, starting from the Big Bang to today. It could have all turned out very differently, if not for some key players. For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse Support the show

Oct 23, 202320 minEp. 71

70 - WTU Live: Will Intelligent Life Persist in the Universe? (ft. Daniel Holz and Diana Powell)

Why This Universe hosts it's first ever live episode taping featuring guests Daniel Holz and Diana Powell. We discuss the possibility of intelligent life out in the Universe, the existential risks faced by humans on Earth, and the chance the intelligent life can persist in the Universe. This conversation took place during the University of Chicago Podcast Network festival. For access to ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/why...

Oct 10, 202358 minEp. 70

Special Announcement + ChatGPT On Unifying Quantum Mechanics and Relativity

CORRECTION: We misspeak about the time of the event in the episode, we are really on at 3-4 pm CST! Apologies! Why This Universe is going live on October 3rd in Chicago, IL! RSVP for *free* here: https://www.eventbrite.com/e/ucpn-podcast-festival-tickets-717455076447?aff=ebdsoporgprofile Join us on Patreon at https://www.patreon.com/whythisuniverse Support the show

Sep 28, 202310 minEp. 79

69 - An Update on Modified Gravity (MOND)

While physicists overwhelmingly agree about the existence of dark matter, a select group of people aren't convinced. Instead, they believe we must be wrong about gravity, and claim we need a theory of modified gravity (MOND) instead. Recent press releases have claimed "smoking gun" evidence for this underdog theory, should we take them seriously? Did you know this episode was inspired by a Patreon question? For access to ask-us-anything segments and other exclusives, join us for just $3 a month ...

Aug 28, 202347 minEp. 69

68 - The Age of the Universe

Today we are debunking the recent paper that claims our universe is much older than previously thought. For ask-us-anything segments and other exclusives, join us for just $3 a month on Patreon: https://patreon.com/whythisuniverse For fun dinosaur facts and research, check out I Know Dino: The Big Dinosaur Podcast, on Apple or wherever you get your podcasts https://podcasts.apple.com/us/podcast/i-know-dino-the-big-dinosaur-podcast/id960976813?ign-mpt=uo%3D4&mt=2 Support the show...

Aug 14, 202329 minEp. 68

6 - Your Tour Through Quantum Weirdness (Rebroadcast)

We are celebrating our 3 year anniversary with a throwback to one of our earliest episodes! Entanglement, wave-particle duality, and uncertainty - here's a breakdown of the weirdest and wildest things about quantum mechanics. To support our show and access exclusive ask-us-anything segments and more, join us on Patreon at https://www.patreon.com/whythisuniverse. Support the show

Jul 31, 202330 minEp. 76