Science & Futurism with Isaac Arthur - podcast cover

Science & Futurism with Isaac Arthur

Isaac Arthurart19.com

Science & Futurism with Isaac Arthur explores humanity’s long-term future through space exploration, advanced technology, and big-picture science. Hosted by National Space Society President Isaac Arthur, each episode uses real science and careful speculation to examine space colonization, megastructures, artificial intelligence, post-scarcity economies, and the physics shaping civilization beyond Earth.

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Episodes

Why Haven’t We Found Dyson Spheres Yet?

This episode delves into the Fermi Paradox, specifically addressing why we haven't detected Dyson Spheres or other large-scale engineering projects by advanced civilizations. It explores the expected observational signatures of such megastructures, the cosmic timelines that should have allowed for widespread expansion, and various alternative explanations like civilizations choosing not to expand or being too efficient. Ultimately, the absence of these visible signs challenges our core assumptions about extraterrestrial life.

Jun 20, 202639 minEp. 866

Why Haven’t We Found Dyson Spheres Yet? (Narration Only)

From Dysonian SETI to waste heat and galactic timelines, we explore why we haven’t found Dyson Spheres—and what their absence reveals about civilization. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaacarthur....

Jun 20, 202639 minEp. 866

The Physics of FTL Travel

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit ou...

Jun 18, 202641 minEp. 865

The Physics of FTL Travel (Narration Only)

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit ou...

Jun 18, 202640 minEp. 865

Space Habitats: The Megastructures We’ll Call Home

Explore the future of space habitats, from rotating cylinders and torus colonies to orbital cities, asteroid homes, and the megastructures humanity may one day live inside. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http...

Jun 13, 20263 hr 44 minEp. 863

Space Habitats: The Megastructures We’ll Call Home (Narration Only)

Explore the future of space habitats, from rotating cylinders and torus colonies to orbital cities, asteroid homes, and the megastructures humanity may one day live inside. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http...

Jun 13, 20263 hr 51 minEp. 863

What If Humanity Never Masters Fusion?

What if fusion power never becomes practical? Humanity still has solar, fission, storage, beamed power, and enough known physics to build a spacefaring future. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaaca...

Jun 11, 202626 minEp. 862

What If Humanity Never Masters Fusion? (Narration Only)

What if fusion power never becomes practical? Humanity still has solar, fission, storage, beamed power, and enough known physics to build a spacefaring future. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/ 🌐 Visit our Website: http://www.isaaca...

Jun 11, 202626 minEp. 862
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