StarTalk with Neil deGrasse Tyson

StarTalk with 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! 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

September 29, 2026 • 54 mins

Why does string theory need ten dimensions? Neil deGrasse Tyson and comic co-host Jordan Klepper sit down with Lara Anderson, string theorist and associate professor of physics at Virginia Tech, to tackle intersecting dimensions, the nature of gravity, and a unified field theory. 

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What do we do with all this space junk? On this episode, Neil deGrasse Tyson and comic co-host Chuck Nice answer questions about the stuff we put into orbit with astrodynamicist and space environmentalist, Dr. Moriba Jah. 

Originally Aired July 5th, 2021.

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September 22, 2026 • 42 mins

How far did Alan Shepard hit a golf ball on the moon? How many monkeys named Albert have been to space? Neil deGrasse Tyson, comedian Paul Mecurio, and Senior StarTalk Producer Lindsey Walker find out the answers on this Game Show Edition of Startalk celebrating the release of our new book, Lost in Space: 5,000 Facts for Navigating the Universe.

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Do the fractal nature of the universe and the human brain have anything to do with each other? Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly welcome back Geek-In-Chief Charles Liu, for a grab bag covering deep space travel, fractal mathematics, multiverse theory, and what we might never know about the universe.

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September 15, 2026 • 47 mins

What is fundamental in the universe? Neil deGrasse Tyson and comic co-host Chuck Nice welcome back Hakeem Oluseyi to dive deep into cosmology, plasma physics, the origins of life, and some of the most provocative ideas in modern astrophysics.

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Is there a limit to how small life can be? Or how big? Neil deGrasse Tyson and Chuck Nice break down why all craters on the moon are round, the scale to life, and why the length of the day isn’t 24 hours. 

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September 4, 2026 • 74 mins

What if you could reopen your childhood brain? Neil deGrasse Tyson, Chuck Nice, and Gary O’Reilly explore the cutting edge of psychedelic science, critical periods, and what a high octopus can teach us about the human mind with neuroscientist and psychedelics expert Gül Dölen.

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September 1, 2026 • 53 mins

Did we discover an exomoon? Neil deGrasse Tyson and Chuck Nice learn about the search for exoplanets with biosignatures, super Earths & mini Neptunes, and whether rogue planets outside of a solar system could harbor life with astrophysicist David Kipping. 

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Is nuclear power the key to sustainability? With data centers consuming massive amounts of energy, can we keep up? Neil deGrasse Tyson, Gary O’Reilly & Paul Mecurio discuss the physics, safety, and future of nuclear reactors in a world of increasing power demands with nuclear engineer Kathryn Huff.

Originally Aired February 21, 2025.

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How do you build a telescope to study something you can't see? Neil deGrasse Tyson and Paul Mecurio sit down with Jason Rhodes, senior research scientist at JPL, to explore the Nancy Grace Roman Space Telescope and its search for answers on dark energy and dark matter.

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August 21, 2026 • 63 mins

What are the limits of the human mind? Neil deGrasse Tyson, Chuck Nice, and Gary O’Reilly explore sensory perception, dreaming, synesthesia, time, and the flexibility of the human brain with neuroscientist David Eagleman. Why does time seem to slow down during an emergency?

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How big can bugs get? Neil deGrasse Tyson and Negin Farsad sit down with entomologist, Jessica Ware, to dig into the extraordinary world of bugs, insects the size of navel oranges, how they invented flying and so much more.

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Thanks to our Patrons Farouk, David Arnold, Michael Gugel, Forbidjon, Lech Kaniuk, Jay C, Taylor -, Colton Harward, Patrick Duncan, Jimm...

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What does it look like beneath the surface of the sun? On this episode, Neil deGrasse Tyson and comedian Chuck Nice discuss the heliosphere, the Parker Solar Probe, and solar storms with heliophysicist Lika Guhathakurta.

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August 7, 2026 • 44 mins

Could there be other universes out there? On this episode, Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly answer science questions from celebrities like Steven Spielberg, Josh Scherer, Emily Blunt, and more.

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August 4, 2026 • 47 mins

Could there be a hidden planet lurking beyond Pluto and Neptune? Neil deGrasse Tyson and comic co-host Chuck Nice tackle a wide-ranging grab bag of fan questions covering Planet 9, galaxy shapes, dark matter, the odds of getting hit by a meteorite, and more!

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If scientists discovered that we are not alone, what would they do with that information? Neil deGrasse Tyson and Chuck Nice learn about the search for life, habitability around M stars and more with astrophysics professor and author Aomawa Shields.

Originally Aired July 11, 2023.

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Does time always move at the same rate? Neil deGrasse Tyson and Chuck Nice break down things you thought you knew about time dilation, gravity assists, the north star, and your zodiac sign.

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Thanks to our Patrons Dan Kelly, Richard Dickinson, Wendy Gaspard, Adam Diaz, Dylan Baun, Chuck Cosmo, Antal Turóczi, Cassie Mayberry, Chris L, Kiela Peoples, Bruce Lesse...

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Is there such a thing as objective truth? Are we living in a post-truth world? Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly sit down to build a toolkit for finding the truth in an era of motivated reasoning, misinformation, and alternative facts with science historian and professional skeptic, Michael Shermer.

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Could spacetime curve in the opposite direction and produce a repulsive field instead of gravity? Neil deGrasse Tyson and comic co-host Chuck Nice tackle fan questions about photons, heat death, gravitational waves, neutron stars and more with astrophysicist Michelle Thaller.

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Thanks to our Patrons Richard Asante, Zan Barrage, Nekoda, Charles O'Neal, Fred Fre...

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July 14, 2026 • 62 mins

How do you get entangled particles? Neil deGrasse Tyson and comic co-host Chuck Nice unpack the experimental side of entanglement, superposition, and the quantum underpinnings of our universe with experimental physicist, Sean Hodgman.

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