All Episodes

August 29, 2023 46 mins

Why is the past different from the future? Neil deGrasse Tyson and Chuck Nice explore the universe’s deepest questions like why is there anything, what is the present, and if there could be a unified theory of physics with theoretical physicist Sean Carroll.

For more information about the new book: https://startalkmedia.com/books

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here: 
https://startalkmedia.com/show/physics-philosophy-with-sean-carroll/

Thanks to our Patrons Nick hemmerich, Kelley Bard, Lou Casagrande, Nathaniel Johnston, Jesus Tamayo, and Leon for supporting us this week.

Photo Credit: ESO/VVV, CC BY 4.0, via Wikimedia Commons

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.


Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Listen
Watch
Mark as Played

Advertise With Us

Popular Podcasts

Las Culturistas with Matt Rogers and Bowen Yang

Las Culturistas with Matt Rogers and Bowen Yang

Ding dong! Join your culture consultants, Matt Rogers and Bowen Yang, on an unforgettable journey into the beating heart of CULTURE. Alongside sizzling special guests, they GET INTO the hottest pop-culture moments of the day and the formative cultural experiences that turned them into Culturistas. Produced by the Big Money Players Network and iHeartRadio.

Bleep! with Ana Navarro

Bleep! with Ana Navarro

Fear thrives in silence and confusion. Ana Navarro rejects both. Her voice is an antidote to today’s chaos. Her new podcast, Bleep! with Ana Navarro, takes on today’s most pressing issues with the voices most connected to it: decision-makers, political leaders, cultural shapers, and people on the frontlines of the story. The conversations acknowledge the emotions we all feel—despair, sadness, fear— but emerge with knowledge, perspective, and hope. The belief is simple: fearless dialogue can transform fear into courage, and courage into change. When fear dominates the headlines, this show digs deeper. Because information, debate, and conversation don’t just ease fear, they give us power to shape the future.

Hey Jonas!

Hey Jonas!

Hey Jonas! The official Jonas Brothers podcast. Hosted by Kevin, Joe, and Nick Jonas. It’s the Jonas Brothers you know... musicians, actors, and well, yes, brothers. Now, they’re sharing another side of themselves in the playful, intimate, and irreverent way only they can. Spend time with the Jonas Brothers here and stay a little bit longer for deep conversations like never before.

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2026 iHeartMedia, Inc.

  • Help
  • Privacy Policy
  • Terms of Use
  • AdChoicesAd Choices