# Science & Futurism with Isaac Arthur A podcast by Isaac Arthur. 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. Feed: https://rss.art19.com/science-and-futurism ## Latest episodes - [The Fermi Paradox: Civilization Extinction Cycles (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/78c58526a725) (2026-10-25, 37 min): audio https://rss.art19.com/episodes/3456c763-ce92-4972-b2cd-8287bd5a7ae6.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Fermi Paradox: Civilization Extinction Cycles](https://invisiblenetwork.ai/podcast/1224204194/459e1f56aec6) (2026-10-25, 37 min): audio https://rss.art19.com/episodes/44a1e284-cbe5-4d60-8548-cefca17ab4d7.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Future of Elections: Who Votes, How We Vote, and What Comes Next (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/68001e7e6a1b) (2026-10-22, 47 min): audio https://rss.art19.com/episodes/a3e4b301-7c3b-4e73-9d75-24dc71293b96.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Future of Elections: Who Votes, How We Vote, and What Comes Next](https://invisiblenetwork.ai/podcast/1224204194/935c0df83210) (2026-10-22, 47 min): audio https://rss.art19.com/episodes/228ed02f-6609-41fe-ada8-a06c11d03617.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Colonizing the Multiverse: Beyond the Kardashev Scale Into Infinite Universes (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/f4af75282cbd) (2026-10-17, 35 min): audio https://rss.art19.com/episodes/43b132f1-f121-4f4d-90de-df33fc081495.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Colonizing the Multiverse: Beyond the Kardashev Scale Into Infinite Universes](https://invisiblenetwork.ai/podcast/1224204194/ebb175069120) (2026-10-17, 36 min): audio https://rss.art19.com/episodes/132cd42a-f776-4832-a256-7aac5838765c.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Civilizations at the Galactic Center: Thriving at the Core (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/ed3bc4de9f2b) (2026-10-15, 27 min): audio https://rss.art19.com/episodes/1f0256b6-baad-44b6-983b-33d01dcc5073.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Civilizations at the Galactic Center: Thriving at the Core](https://invisiblenetwork.ai/podcast/1224204194/af9e54ac5a13) (2026-10-15, 27 min): audio https://rss.art19.com/episodes/98c2099b-bea5-4911-9949-b4a7931d8a1a.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Could We Create Artificial Universes? Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/40528530d261) (2026-10-11, 33 min): audio https://rss.art19.com/episodes/2d42e141-b2b4-40d8-9a95-c1a990b3b4e2.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Could We Create Artificial Universes?](https://invisiblenetwork.ai/podcast/1224204194/5979405984cd) (2026-10-11, 33 min): audio https://rss.art19.com/episodes/5c2543fa-5449-4cc1-b653-92732cc3512c.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [White Holes: Do They Exist? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/6db5c8604702) (2026-10-08, 29 min): audio https://rss.art19.com/episodes/9458010c-6049-40af-afe4-b36288d60d54.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [White Holes: Do They Exist?](https://invisiblenetwork.ai/podcast/1224204194/5c7d044d3959) (2026-10-08, 29 min): audio https://rss.art19.com/episodes/e6aba9ff-35eb-4640-a994-ab299ed1de7e.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Mining Mercury: The First Planetary Industrial Base (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/1847b920c9e5) (2026-10-04, 37 min): audio https://rss.art19.com/episodes/586412ad-f046-4c9c-9ae0-16f1b904eed1.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Mining Mercury: The First Planetary Industrial Base](https://invisiblenetwork.ai/podcast/1224204194/413ba543827b) (2026-10-04, 37 min): audio https://rss.art19.com/episodes/64567f52-7506-49ad-9d56-2c20c0258185.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [We Can Make Gasoline From Air. So Why Don’t We? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/3597616f277f) (2026-10-01, 34 min): audio https://rss.art19.com/episodes/1d1ed144-5728-48b4-a63f-3f7329091f16.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [We Can Make Gasoline From Air. So Why Don’t We?](https://invisiblenetwork.ai/podcast/1224204194/37103489a4fd) (2026-09-28, 34 min): audio https://rss.art19.com/episodes/5e01ba65-d8a0-454c-a2f4-59f78803911a.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Economics of Immortality (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/105846d0f63e) (2026-09-27, 42 min): audio https://rss.art19.com/episodes/52777530-e815-4660-82a9-137a07a5ae3d.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Economics of Immortality](https://invisiblenetwork.ai/podcast/1224204194/4564740755ef) (2026-09-27, 42 min): audio https://rss.art19.com/episodes/ed775151-dfe6-4401-9b35-83cca084b20a.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Prison Planet Problem - Exiled to Space](https://invisiblenetwork.ai/podcast/1224204194/e75da1360b25) (2026-09-24, 34 min): audio https://rss.art19.com/episodes/2d014396-8aed-4d20-ae62-6b31a4798928.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Prison Planet Problem - Exiled to Space (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/af1cfa5a80e3) (2026-09-24, 33 min): audio https://rss.art19.com/episodes/6a562e2a-7a84-4855-a54d-3c511fd0536d.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [How Big Could Human Civilization? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/3244c28b2cc4) (2026-09-20, 44 min): audio https://rss.art19.com/episodes/a9c5d71b-7089-4404-9b0a-5f2d9d5752d9.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [How Big Could Human Civilization?](https://invisiblenetwork.ai/podcast/1224204194/9d13a131b394) (2026-09-20, 44 min): audio https://rss.art19.com/episodes/2e6e2d68-575a-44c8-9179-63276daf9cd5.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Can a Civilization Forget How Its Own Technology Works? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/62d35f2bf652) (2026-09-17, 32 min): audio https://rss.art19.com/episodes/ea849998-d96f-44f1-8de0-280a0af4955d.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Can a Civilization Forget How Its Own Technology Works?](https://invisiblenetwork.ai/podcast/1224204194/93515ba85f47) (2026-09-17, 33 min): audio https://rss.art19.com/episodes/1261142a-832b-4244-89f7-f659813e30e0.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Floating Cities Above Gas Giants (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/6a75304d4566) (2026-09-12, 26 min): audio https://rss.art19.com/episodes/899628fa-c8f7-4574-8817-c6d0d672a233.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Floating Cities Above Gas Giants](https://invisiblenetwork.ai/podcast/1224204194/5e2294410915) (2026-09-12, 26 min): audio https://rss.art19.com/episodes/37caea68-3d4e-4c51-aa85-f36787f114a2.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The First Space Elevator: Where Would We Build It? (Narration Oly)](https://invisiblenetwork.ai/podcast/1224204194/7983f0b830be) (2026-09-10, 23 min): audio https://rss.art19.com/episodes/c2900fe3-9321-4ddb-b771-3914a638f20f.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The First Space Elevator: Where Would We Build It?](https://invisiblenetwork.ai/podcast/1224204194/0801eb53db73) (2026-09-10, 23 min): audio https://rss.art19.com/episodes/5f046ec2-58f1-4ae2-8217-88a018357e74.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Ion Drives: The Slow Rockets That Win Space (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/9990a85852ac) (2026-09-06, 35 min): audio https://rss.art19.com/episodes/d726f550-5ad1-454f-b8e2-8799a232b409.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Ion Drives: The Slow Rockets That Win Space](https://invisiblenetwork.ai/podcast/1224204194/27accecb9789) (2026-09-06, 35 min): audio https://rss.art19.com/episodes/db42914a-81ce-47e3-b449-9ceb579b87bc.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Wow! Signal: Alien Message, Cosmic Fluke, or SETI’s Best False Alarm? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/08edf0d299f9) (2026-09-03, 35 min): audio https://rss.art19.com/episodes/e4c2c278-545a-4f35-a840-a706a4e6026e.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The Wow! Signal: Alien Message, Cosmic Fluke, or SETI’s Best False Alarm?](https://invisiblenetwork.ai/podcast/1224204194/80ee473f0d14) (2026-09-03, 35 min): audio https://rss.art19.com/episodes/917ce5e7-4d6f-49ff-ab62-17354663e9f2.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Dark Biospheres - Life on Worlds Without Sunlight (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/11875c06c7f2) (2026-08-29, 28 min): audio https://rss.art19.com/episodes/efe26622-2284-417c-92c8-2ccbf8a129e9.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Dark Biospheres - Life on Worlds Without Sunlight](https://invisiblenetwork.ai/podcast/1224204194/5a14d799b09f) (2026-08-29, 28 min): audio https://rss.art19.com/episodes/2b893add-3466-4b82-8ba5-f41daaf95f9d.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [What Happens Inside a Black Hole? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/2885616497cf) (2026-08-27, 34 min): audio https://rss.art19.com/episodes/94c116a1-3ea1-44da-9f7e-bf7b81ffc7b2.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [What Happens Inside a Black Hole?](https://invisiblenetwork.ai/podcast/1224204194/329c96462db3) (2026-08-27, 35 min): audio https://rss.art19.com/episodes/469420e0-3118-4755-a202-fb9e24a4019c.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Megacorporations in Space (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/8ffa1769405a) (2026-08-23, 39 min): audio https://rss.art19.com/episodes/ded11d04-e5d3-4afd-9c40-724c99e1ac7b.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Megacorporations in Space](https://invisiblenetwork.ai/podcast/1224204194/a70c9a27ded1) (2026-08-23, 39 min): audio https://rss.art19.com/episodes/1c1355be-7f7b-4445-84d6-e04002af2c6a.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The First Generation Problem – Who Shapes a New Civilization’s Values?](https://invisiblenetwork.ai/podcast/1224204194/c70f18b48e96) (2026-08-20, 32 min): audio https://rss.art19.com/episodes/2db36423-ec2e-474d-aa32-d87e9debc57a.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The First Generation Problem – Who Shapes a New Civilization’s Values? (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/57c5bcc0d520) (2026-08-20, 39 min): audio https://rss.art19.com/episodes/de1b7549-e479-42b6-8dcc-d390c30b7f67.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Space Habitats: The Strangest Worlds We Could Build (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/aa6c7a17623b) (2026-08-15, 275 min): audio https://rss.art19.com/episodes/a0b63fc4-dc7f-41ca-9881-ed9c08f834b3.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Space Habitats: The Strangest Worlds We Could Build](https://invisiblenetwork.ai/podcast/1224204194/3745ade7492a) (2026-08-15, 270 min): audio https://rss.art19.com/episodes/d82cf0a2-aa7a-4f93-a064-4b2ec4f0c84f.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Life in a Relativistic Starship](https://invisiblenetwork.ai/podcast/1224204194/f3d610f399ff) (2026-08-13, 35 min): audio https://rss.art19.com/episodes/c11f7748-dd72-4c0a-bf0d-eddadb41c8c4.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Life in a Relativistic Starship (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/afb10746aa43) (2026-08-13, 35 min): audio https://rss.art19.com/episodes/8cd2e63b-f3b4-4844-9f3e-6ecb6e497ddc.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Are We Living in a Simulation? A Modern Look at the Simulation Argument (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/16759065c413) (2026-08-09, 41 min): audio https://rss.art19.com/episodes/dbbf0ea3-8973-4838-a4d0-8e550798bb83.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Are We Living in a Simulation? A Modern Look at the Simulation Argument](https://invisiblenetwork.ai/podcast/1224204194/30b7f9b4e292) (2026-08-09, 41 min): audio https://rss.art19.com/episodes/aaf3f0ca-77f4-4063-9acc-584d1f72ae59.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The First Martian Cities: Planning Habitats (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/a6e1e1a1a9b7) (2026-08-06, 34 min): audio https://rss.art19.com/episodes/c36fab31-9842-45f6-94c8-c7fd6ca389fe.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [The First Martian Cities: Planning Habitats](https://invisiblenetwork.ai/podcast/1224204194/4f22f4a8d180) (2026-08-06, 34 min): audio https://rss.art19.com/episodes/7f8b93a5-2664-42be-a8af-9630e7762dd8.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Fluorine Lifeforms – Creatures of the Halogen Seas (Narration Only)](https://invisiblenetwork.ai/podcast/1224204194/867bb6949850) (2026-08-02, 34 min): audio https://rss.art19.com/episodes/8e1e1ab2-6206-4f56-9f6e-99e32436acd8.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b - [Fluorine Lifeforms – Creatures of the Halogen Seas](https://invisiblenetwork.ai/podcast/1224204194/5af69542d143) (2026-08-02, 34 min): audio https://rss.art19.com/episodes/803d94ca-c1f9-4577-932b-071c553abba2.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b Shows are listed from Apple Podcasts' charts and directory, and Podcast Index where it is used. Every show and episode belongs to its publisher and plays from the publisher's own feed; this site hosts none of them.