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Universe Today Podcast · Wednesday · 41 min

[Interview+] How Much Gravity Is Too Much To Escape A Planet?

BONUS PART STARTS AT 20:51 Watch here (with no ads) or on YouTube: https://youtu.be/QD5sJ636wxM More interviews: https://www.patreon.com/collection/44300/ 🟣 Guest: Dr. Sanjoy Som https://www.bluemarblespace.org/ 📜 Multistage Rocket Optimization, Geophysics, and the Spacefaring Envelope of Habitable Super-Earths https://arxiv.org/abs/2607.02691 Rockets fight against gravity to help us as a civilization escape into space. But what if a planet is much heavier? How big and dense does it need to get before a civilization gets permanently trapped and can't go to space? 00:00 Intro 01:16 Escaping the gravity well 06:53 Limiting factors 09:47 Rockets 15:18 Can a civilizations get trapped 20:51 Geology-driven civilization 32:54 Current obsessions 39:11 Final thoughts

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BONUS PART STARTS AT 20:51

Watch here (with no ads) or on YouTube: https://youtu.be/QD5sJ636wxM

More interviews: https://www.patreon.com/collection/44300/

🟣 Guest: Dr. Sanjoy Som https://www.bluemarblespace.org/

📜 Multistage Rocket Optimization, Geophysics, and the Spacefaring Envelope of Habitable Super-Earths https://arxiv.org/abs/2607.02691

Rockets fight against gravity to help us as a civilization escape into space. But what if a planet is much heavier? How big and dense does it need to get before a civilization gets permanently trapped and can't go to space?

  • 00:00 Intro

  • 01:16 Escaping the gravity well

  • 06:53 Limiting factors

  • 09:47 Rockets

  • 15:18 Can a civilizations get trapped

  • 20:51 Geology-driven civilization

  • 32:54 Current obsessions

  • 39:11 Final thoughts

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