
Hosted by Isaac Arthur · EN
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.

Could digital immortality really save you, or just create a convincing copy? We explore mind uploading, backups, identity, and whether survival means continuity… or redundancy.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurCheck out Joe's Scott's Oldest and Newest Places on Earth: https://nebula.tv/oldestnewest?ref=isaacarthurWatch my exclusive video Colonizing Ocean Worlds: https://nebula.tv/videos/isaacarthur-colonizing-ocean-worlds-subaquatic-settlements🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Digital Immortality - Backing Up the Human SoulWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Could digital immortality really save you, or just create a convincing copy? We explore mind uploading, backups, identity, and whether survival means continuity… or redundancy.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurCheck out Joe's Scott's Oldest and Newest Places on Earth: https://nebula.tv/oldestnewest?ref=isaacarthurWatch my exclusive video Colonizing Ocean Worlds: https://nebula.tv/videos/isaacarthur-colonizing-ocean-worlds-subaquatic-settlements🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Digital Immortality - Backing Up the Human SoulWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Artificial intelligence may be civilization’s greatest tool… or its last. Could AI explain why the galaxy seems silent, or does it make the Fermi Paradox even harder?Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Colonizing Ocean Worlds: https://nebula.tv/videos/isaacarthur-colonizing-ocean-worlds-subaquatic-settlementsCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Is Artificial Intelligence the Great Filter | The Fermi ParadoxWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Artificial intelligence may be civilization’s greatest tool… or its last. Could AI explain why the galaxy seems silent, or does it make the Fermi Paradox even harder?Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Colonizing Ocean Worlds: https://nebula.tv/videos/isaacarthur-colonizing-ocean-worlds-subaquatic-settlementsCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Is Artificial Intelligence the Great Filter | The Fermi ParadoxWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty ImagesSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

From cosmic rays to solar storms, space travel is a radiation gauntlet—but water may be the simplest, smartest solution. Discover how future starships might turn their life-support systems into life-saving armor.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-itCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Fishbowl Starships Water As ShieldingEpisode 721; June 1, 2025; Nebula ExclusiveWritten, Produced, & Narrated by: Isaac ArthurGraphics: Bryan Versteeg, Jeremy Jozwik, Udo SchroeterSelect imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creatorTaras Harkavyi, "Alpha and..."Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector""Oxygen Garden", "Wonder Cycle"Stellardrone, "Red Giant", "Billions and Billions"See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

From cosmic rays to solar storms, space travel is a radiation gauntlet—but water may be the simplest, smartest solution. Discover how future starships might turn their life-support systems into life-saving armor.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-itCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Fishbowl Starships Water As ShieldingEpisode 721; June 1, 2025; Nebula ExclusiveWritten, Produced, & Narrated by: Isaac ArthurGraphics: Bryan Versteeg, Jeremy Jozwik, Udo SchroeterSelect imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creatorTaras Harkavyi, "Alpha and..."Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector""Oxygen Garden", "Wonder Cycle"Stellardrone, "Red Giant", "Billions and Billions"See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Can antimatter be stored safely? Explore magnetic traps, starship fuel, and the terrifying challenge of bottling energy that destroys any container it touches.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch 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.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Antimatter Containment - Bottling the LightningWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty Images0:00 Intro1:29 Bottling Lightning – Why Antimatter Is So Hard to Hold3:57 How We Do It Today – Traps, Fields, and Tiny Amounts10:31 Scaling the Impossible – From Lab Curiosity to Fuel Tank15:08 Starship Fuel and Doomsday Risks20:27 Nebula21:42 Beyond Bottles – Rethinking How We Contain AntimatterSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Can antimatter be stored safely? Explore magnetic traps, starship fuel, and the terrifying challenge of bottling energy that destroys any container it touches.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch 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.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:Antimatter Containment - Bottling the LightningWritten, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty Images0:00 Intro1:29 Bottling Lightning – Why Antimatter Is So Hard to Hold3:57 How We Do It Today – Traps, Fields, and Tiny Amounts10:31 Scaling the Impossible – From Lab Curiosity to Fuel Tank15:08 Starship Fuel and Doomsday Risks20:27 Nebula21:42 Beyond Bottles – Rethinking How We Contain AntimatterSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

What if we found a true second Earth nearby? A living world, a barren paradise, or something too familiar to be natural could change science, politics, and humanity’s future forever.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-itCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:What If We Found a Second Earth Nearby?Written, Produced & Narrated by: Isaac ArthurMusic Courtesy of Stellardrone & Chris Zabriskie Select imagery/video supplied by Getty ImagesChapters 0:00 Intro1:26 What Counts as a “Second Earth”? 4:34 The Hidden Twin6:24 The Real Discovery: A Nearby Earth8:42 If It Has Life9:17 Alien Life, But Compatible11:15 Familiar Life - Too Familiar13:26 Gods & Monsters14:36 If It’s Barren - but Ready18:00 The Rush: Who Gets a Whole World?20:49 The Economics of a Second Earth23:30 How Do You Divide a Planet?26:27 The Long View: A Second Earth Changes EverythingSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

What if we found a true second Earth nearby? A living world, a barren paradise, or something too familiar to be natural could change science, politics, and humanity’s future forever.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-itCheck out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/🌐 Visit our Website: http://www.isaacarthur.net❤️ Support us on Patreon: https://www.patreon.com/IsaacArthur⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur👥 Facebook Group: https://www.facebook.com/groups/1583992725237264/📣 Reddit Community: https://www.reddit.com/r/IsaacArthur/🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur💬 SFIA Discord Server: https://discord.gg/53GAShECredits:What If We Found a Second Earth Nearby?Written, Produced & Narrated by: Isaac ArthurMusic Courtesy of Stellardrone & Chris Zabriskie Select imagery/video supplied by Getty ImagesChapters 0:00 Intro1:26 What Counts as a “Second Earth”? 4:34 The Hidden Twin6:24 The Real Discovery: A Nearby Earth8:42 If It Has Life9:17 Alien Life, But Compatible11:15 Familiar Life - Too Familiar13:26 Gods & Monsters14:36 If It’s Barren - but Ready18:00 The Rush: Who Gets a Whole World?20:49 The Economics of a Second Earth23:30 How Do You Divide a Planet?26:27 The Long View: A Second Earth Changes EverythingSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.