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.

1. —
   Vanessa O’Brien

   #ICYMI - Conquering Mountains, with Vanessa O’Brien · Oct 2018

   0 votes

   Never again
2. —
   WWE’s Xavier Woods

   Wrestling the Pandemic, with WWE’s Xavier Woods · Apr 2020

   0 votes

   Never again
3. —
   Wendy Freedman

   Solving the Crisis in Cosmology with Wendy Freedman · 2 episodes

   0 votes

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4. —
   Wendy Okolo

   Flying Cars & Pilotless Planes with NASA Engineer, Wendy Okolo, PhD. · Nov 2023

   0 votes

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5. —
   Will Buxton

   #ICYMI - Motorsports – Physics & Technology, with Will Buxton & Mario Andretti · Jun 2018

   0 votes

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6. —
   World Champion Alicia Ashley

   #ICYMI - Women’s Boxing, with World Champion Alicia Ashley · Apr 2019

   0 votes

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7. —
   Zeljko Ivezic

   Vera Rubin Observatory with Zeljko Ivezic · Jul 2025

   0 votes

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8. —
   James P. Allison

   Curing Cancer, with 2018 Nobel Laureate Jim Allison · Oct 2018

   0 votes

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9. —
   John Mulaney
   0 votes

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10. —
    Sarah Silverman

    Extended Classic: StarTalk Live! Satisfying Our Curiosity about Mars (Part 1) · 3 episodes

    0 votes

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11. —
    Colin Jost

    Extended Classic: Cosmic Queries: Superheroes · 3 episodes

    0 votes

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12. —
    Paul Rudd
    0 votes

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13. —
    David Epstein

    Making a Phenom: Genetics · Jun 2020

    0 votes

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14. —
    Robert F. Kennedy Jr

    StarTalk Live! Water World (Part 2) · 2 episodes

    0 votes

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15. —
    Mark Normand
    0 votes

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16. —
    Paul Steinhardt

    Cosmic Queries: The Multiverse · Aug 2016

    0 votes

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17. —
    Jim Gaffigan
    0 votes

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18. —
    Nikki Glaser
    0 votes

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19. —
    Katy Perry

    Katy Perry’s Cosmic Curiosity · Aug 2018

    0 votes

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20. —
    Jon Stewart

    The Political Science of The Daily Show · 2 episodes

    0 votes

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21. —
    Dax Shepard
    0 votes

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22. —
    Michael Che
    0 votes

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23. —
    Vanessa Bayer
    0 votes

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24. —
    Sasheer Zamata

    Science at Warp Speed: StarTalk Live! · Mar 2026

    0 votes

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25. —
    Christopher Lloyd
    0 votes

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26. —
    Hari Kondabolu
    0 votes

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27. —
    Sean Lennon
    0 votes

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28. —
    Phoebe Robinson
    0 votes

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29. —
    Iliza Shlesinger

    Season 7 Time Capsule (Part 2) · 2 episodes

    0 votes

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30. —
    Michael Rapaport
    0 votes

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31. —
    Pete Holmes
    0 votes

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32. —
    Wyatt Cenac
    0 votes

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33. —
    D’Wayne Edwards

    #ICYMI - Sneakerheads and Sneaker Design · Jun 2019

    0 votes

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34. —
    Ilana Glazer
    0 votes

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35. —
    Alex Davies
    0 votes

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36. —
    Anne Wojcicki

    The Promise and Peril of the Genomic Revolution · Apr 2016

    0 votes

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37. —
    Ellie Kemper
    0 votes

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38. —
    Helen Fisher

    Extended Classic: Cosmic Queries - The Science of Love · 2 episodes

    0 votes

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39. —
    Jack White
    0 votes

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40. —
    Jessica Williams
    0 votes

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