#322 - Ethan Siegel - Grand Cosmic Story

What this episode covers

In this episode, Matt opens with forgotten space hero John Bevis’ birthday and a cosmic musing on relativistic dust, black holes, and the unimaginable energies hidden in tiny things. Then astrophysicist and author Ethan Siegel joins the show to discuss his new book, The Grand Cosmic Story, a sweeping journey from the birth of the cosmos to the emergence of life and intelligence. Together they explore the importance of critical thinking, evidence, and scientific honesty in an age when misinformation moves faster than light itself.

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Frequently Asked Questions

How long is this episode of Interplanetary Podcast?

This episode is 1 hour and 28 minutes long.

When was this Interplanetary Podcast episode published?

This episode was published on November 10, 2025.

What is this episode about?

In this episode, Matt opens with forgotten space hero John Bevis’ birthday and a cosmic musing on relativistic dust, black holes, and the unimaginable energies hidden in tiny things. Then astrophysicist and author Ethan Siegel joins the show to...

Can I download this Interplanetary Podcast episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.