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Cosmic Queries – Planet 9 episode artwork

Aug 4, 2026 47 min

Cosmic Queries – Planet 9

from StarTalk with Neil deGrasse Tyson Hosted by Neil deGrasse Tyson, Chuck Nice

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! NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free. Thanks to our Patrons Glenn Fiskin, A. Certain Woman, Jeffrey Schwartz, Adam Watson, Micheal Lawson, Aaron Hardy, Terje Berg, Peter Wells, Tyler, Brody Johnson, Ali, NanZan, SAMuri, Marian Bieniek, Jeff Whitney, Richard Ruffner, Adrian J Batson, Holly Grant, Amy Braden, Andrew Puente, Srihari Ravi, Eliezar Vega, Southern Tauren, Adam Tate, John Johnson, Achim Ferrandina, Rebecca Crowe, Cody May, Gary, William Green, Max_Palmer09, Dylan, Jonas and Aisté, Frank Pucino, Isaac Kinsey, Sean Whitehall, Anthony Prisco, Nathan Thornton, Alex Grzesiak, Lora Vatalaro, Manny Neto, Eric M, Robert Davies, Billy Metcalfe, Gabriel Gish, Sherry Lee Rachar, Alexander Nemeth, Ra.Spec, and Atticus Thompson for supporting us this week. 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.

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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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Cosmic Queries – Planet 9

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This episode is 47 minutes long.

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This episode was published on August 4, 2026.

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