StarTalk Radio

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.

Every guest on StarTalk Radio

697 guests, ranked by how many people never want them back.

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Katie Couric
The Evolution of Journalism, with Katie Couric · Jun 2018

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Alan Alda
Communicating the Science, with Alan Alda · Sep 2018

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Susan Sarandon
Expanding Our Perspectives, with Susan Sarandon · Dec 2015

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David Byrne
The Science of Creativity, with David Byrne · Dec 2015

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Norman Lear
TV and the Evolution of American Culture with Norman Lear · Jun 2015

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Larry Wilmore
Exploring Science and Comedy with Larry Wilmore · Nov 2015

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Josh Groban
The Science of Music with Josh Groban · May 2015

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Temple Grandin
Autism and Animal Science with Dr. Temple Grandin · Apr 2015

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Olivia Munn
Geekdom 101, with Olivia Munn · Feb 2020

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Herman Pontzer
The Power of Adaptability with Herman Pontzer · Jul 2025

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James Marsden
Westworld and the Future of AI, with James Marsden · Sep 2019

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Morgan Freeman
A Conversation with Morgan Freeman · 2 episodes

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Angela Duckworth
Exploring Grit, with Angela Duckworth · Aug 2020

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Kelly Slater
The Surfing Life, with Kelly Slater · Nov 2018

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Scott Kelly
Living in Space, with Scott Kelly · Dec 2018

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Laurie Santos
The Science of Happiness, with Laurie Santos · Jan 2021

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Rainn Wilson
Cosmic Crib, with Rainn Wilson · Oct 2020

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Chris Hardwick
Extended Classic: Time Lords: The Science of Keeping Time with Chris Hardwick · 2 episodes

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Adam McKay
The Science in "Don't Look Up" with Adam McKay and Dr. Amy Mainzer · Feb 2022

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Dan Rather
News in the Digital Age, with Dan Rather · Jul 2019

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Fareed Zakaria
Let’s Make America Smart Again, with Fareed Zakaria · Mar 2017

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Lance Armstrong
#ICYMI - The Physics of the Tour de France (Repeat) · 5 episodes

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Mary Roach
Replaceable You with Mary Roach · 3 episodes

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Ricky Williams

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Stephen J. Dubner
Freakonomics, with Stephen J. Dubner · Jun 2019

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Adam Riess
Origins of Dark Energy with Adam Riess · Dec 2025

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Alex Honnold
Conquering Fear with Alex Honnold · Jun 2026

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Alexis Ohanian
Unravelling Reddit with Alexis Ohanian · Apr 2016

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Arianna Huffington
The Digital Revolution with Arianna Huffington · Aug 2015

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Dan Harris
Mind Over Matter with Dan Harris and Heather Berlin · May 2022

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David Chalmers
The Hard Problem of Consciousness with David Chalmers · Nov 2024

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David Krakauer
Emergence Explained with David Krakauer · Aug 2025

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Jennifer Doudna
The Code of Life and CRISPR with Jennifer Doudna and Walter Isaacson · Apr 2021

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Kate Marvel
Cosmic Queries – Predicting Earth’s Climate Future with Kate Marvel, PhD · Aug 2022

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Andy Serkis
Planet of the Apes · Aug 2014

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Christiane Amanpour
Science and Journalism, with Christiane Amanpour · Oct 2019

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Christopher Nolan
The Science of Interstellar with Christopher Nolan · May 2015

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David Attenborough
The Story of Life on Earth with Sir David Attenborough · Jan 2015

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Frank Oz
From Puppets to Performance Capture, with Frank Oz and Andy Serkis · Nov 2018

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Gina McCarthy
Protecting Our Environment, with Gina McCarthy · Feb 2016

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Recent episodes

1130 episodes from the feed, newest first.

Why Do We Exist with Hakeem Oluseyi
with Hakeem Oluseyi

Sep 2026
Why Craters Are Round, Size of Life, The Real Length of Day – TYTYK
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This Is Your Brain on Psychedelics
with Gül Dölen

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Rogue Planets & Exomoons with David Kipping
with David Kipping

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Solving AI’s Energy Problem with Kathryn Huff
with Kathryn Huff

Aug 2026
The Hunt for Dark Energy with Jason Rhodes
with Jason Rhodes

Aug 2026
Your Inner Cosmos with David Eagleman
with David Eagleman

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with Jessica Ware

Aug 2026
Super Solar Storms with Lika Guhathakurta
with Lika Guhathakurta

Aug 2026
Stars Ask Neil To Save The Universe
Aug 2026
Cosmic Queries – Planet 9
Aug 2026
Cosmic Queries – Life on Other Planets with Aomawa Shields
with Aomawa Shields

Jul 2026
Things You Thought You Knew – Your Zodiac is Wrong
Jul 2026
Finally…The Truth with Michael Shermer
with Michael Shermer

Jul 2026
Running Out of Matter with Michelle Thaller
with Michelle Thaller

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with Sean Hodgman

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The Dreaming Brain with Matt Walker
with Matt Walker

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Cosmic Queries – Pure Spacetime
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with Moiya McTier

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Bug Splat Galaxies with Mordecai-Mark Mac Low
with Mordecai-Mark Mac Low

Jun 2026
Is Reality Really Real? With Donald Hoffman
with Donald Hoffman

Jun 2026
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Jun 2026
Disclosure Day with Steven Spielberg & David Koepp
with Steven Spielberg

Jun 2026
Conquering Fear with Alex Honnold
with Alex Honnold

Jun 2026
Quasar Quirks & Sky Surveys with Matt O’Dowd
with Matt O’Dowd

Jun 2026