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Cosmic Queries – Understanding Infinity with Stephon Alexander episode artwork

Feb 6, 2026 45 min

Cosmic Queries – Understanding Infinity with Stephon Alexander

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

What is infinity? Neil deGrasse Tyson and comedian Negin Farsad explore whether we are in a finite universe, the issues with infinity, string theory, and more with theoretical physicist Stephon Alexander. Originally aired April 11, 2023. NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: https://startalkmedia.com/show/cosmic-queries-understanding-infinity-with-stephon-alexander/ 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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What is infinity? Neil deGrasse Tyson and comedian Negin Farsad explore whether we are in a finite universe, the issues with infinity, string theory, and more with theoretical physicist Stephon Alexander.

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Cosmic Queries – Understanding Infinity with Stephon Alexander

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This episode was published on February 6, 2026.

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