

StarTalk Radio
Neil deGrasse Tyson
Science, pop culture, and comedy collide on StarTalk Radio! Neil deGrasse Tyson, astrophysicist and Director of New York's Hayden Planetarium, and his comic co-hosts, guest celebrities, and scientific experts explore astronomy, physics, and everything else there is to know about life in the universe. New episodes premiere Tuesdays. Keep Looking Up!
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Subscribe to SiriusXM Podcasts+ to listen to new episodes of StarTalk Radio ad-free and a whole week early.
Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.
Episodes
Mentioned books

66 snips
Sep 30, 2025 • 1h 7min
The New Space Race with Jeff Thornburg
In this discussion, aerospace engineer Jeff Thornburg, CEO of Portal Space Systems and a veteran of Air Force, NASA, and SpaceX, shares his insights on the future of space. He highlights the importance of developing highly maneuverable spacecraft and advanced propulsion systems. Jeff discusses the evolution from government-built rockets to commercial alternatives, the lessons learned from failures, and the critical role of R&D funding. He also touches on the potential for AI and quantum propulsion to revolutionize space travel, envisioning a future where lunar travel is as commonplace as a bus ride.

18 snips
Sep 26, 2025 • 52min
Cosmic Queries – Get Some Space
Can anything survive a black hole? Neil deGrasse Tyson and Chuck Nice tackle this question and delve into tidal spaghettification. They discuss the implications of finding extraterrestrial life versus uncovering dark matter. Future colonization of Mars seems unlikely as they explore human challenges in space. The duo also debates the impact of reallocating military funding to enhance scientific advancement. They consider the universe's mysteries, such as the observable edge and simulation theory, while emphasizing the importance of science in shaping policy.

8 snips
Sep 23, 2025 • 50min
Solving the Crisis in Cosmology with Wendy Freedman
Wendy Freedman, a renowned observational astronomer known for her precision in measuring the universe's expansion, joins Neil deGrasse Tyson and Matt Kirshen. They delve into the intriguing Hubble tension, exploring discrepancies in the universe's estimated ages. Freedman shares insights on advanced methods and programs to measure cosmic distances, including the use of Cepheids and Type Ia supernovae. The discussion covers potential new physics and the implications of dark energy, making complex cosmological concepts accessible and engaging!

138 snips
Sep 19, 2025 • 1h 14min
Your Brain on ChatGPT with Nataliya Kosmyna
Nataliya Kosmyna, a research scientist at MIT Media Lab, explores how AI tools like ChatGPT influence our brains. She shares intriguing findings from an essay study that show differences in cognitive load and brain activity when using AI. The discussion touches on concerns about the impact of LLMs on learning, including perceived declines in diagnostic accuracy and creative limits of AI-generated content. Nataliya emphasizes the need for responsible AI policies and safeguards to protect vulnerable users as technology evolves.

Sep 16, 2025 • 54min
Gravity’s Cosmic Symphony with Kelly Holley-Bockelmann
In this engaging discussion, Kelly Holley-Bockelmann, a Physics Professor and chair of NASA's LISA study team, dives into the groundbreaking capabilities of the LISA initiative for detecting gravitational waves. She explores the nuances between black holes and the merging galaxies that fuel ongoing research. The dialogue highlights the importance of early education savings for future explorers, while discussing the challenges of funding and international collaboration that could shape the future of space exploration.

10 snips
Sep 9, 2025 • 44min
Cosmic Queries - Black Hole Universe
Dive into the cosmos while Neil deGrasse Tyson and Paul Mecurio tackle wild questions about black holes and the universe. Discover if we're closer in size to an atom or the vast cosmos. Laugh as they share quirky anecdotes about job losses and late-night show stints. Marvel at discussions on cosmic distances, lunar power solutions, and the mysterious WOW signal looking for extraterrestrial life. Plus, explore parallel universes and the latest discoveries from the James Webb Space Telescope, all wrapped in humor and insight.

43 snips
Sep 5, 2025 • 51min
Cosmic Queries – Grabby Aliens with Charles Liu
Astrophysicist Charles Liu, a professor at the College of Staten Island and host of the looniverse podcast, joins for a fascinating discussion. They delve into the intriguing concept of grabby aliens and the potential implications of their behavior on humanity. The conversation switches to exploring quantum entanglement, free will, and the nature of particles. They even discuss the hypothetical scenario of infinite light speed and its effects on relativity. Humor and deep insights intertwine, making complex topics more relatable and engaging!

35 snips
Sep 2, 2025 • 44min
Building Life from Scratch with Kerstin Göpfrich
Join Neil deGrasse Tyson and Matt Kirshen as they chat with Kerstin Göpfrich, a molecular biologist and professor advancing synthetic biology. They explore how life might originate in the universe and the implications of creating life from scratch. Göpfrich shares insights on RNA nanotechnology and the intriguing concept of molecular chirality. The trio also dives into the ethical complexities of engineering life and the future potential of synthetic organisms, leaving listeners pondering the origins and possibilities of life beyond Earth.

63 snips
Aug 29, 2025 • 47min
Cosmic Queries – The Deep
Delve into the profound questions of existence, from the nature of black holes to the search for extraterrestrial life. Explore the mysteries of consciousness and what it means to be human compared to other species. Discover the irony in the term 'acts of God' and its implications on our perception of disasters. Discuss the challenges facing humanity's survival and the prospects of colonizing Mars. Finally, journey into the cosmic vacuum and ponder higher dimensions, revealing a richer understanding of reality.

23 snips
Aug 26, 2025 • 31min
Things You Thought You Knew – Oatmeal Sun
Discover why rockets don't fly straight up and how that relates to toast-making. Uncover the surprising science behind achieving the perfect shade of brown on your breakfast. The conversation dives into thermodynamics, boiling water, and oatmeal, showcasing the intricate science behind everyday tasks. Explore the fundamental differences between rocket propulsion and airplane engines, and learn about the clever brachrystochrone problem, connecting math to real-world rocket trajectories. It's a delightful mix of humor and learning!


