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Science & Futurism with 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.

The Fermi Paradox - Forbidden Zones

28 mins; October 30, 2025

The Fermi Paradox - Forbidden Zones (Narration Only)

31 secs; October 30, 2025

Caretaker AI & Genius Loci: When Worlds Grow Minds of Their Own

35 mins; October 26, 2025

Caretaker AI & Genius Loci: When Worlds Grow Minds of Their Own (Narration Only)

34 mins; October 26, 2025

Twilight Imperium - When Galactic Civilizations Ebb (Narration Only)

34 mins; October 23, 2025

Twilight Imperium - When Galactic Civilizations Ebb

35 mins; October 23, 2025

Abandoned Space Colonies - How Worlds Can Unterraform Themselves (Narration Only)

34 mins; October 19, 2025

Abandoned Space Colonies - How Worlds Can Unterraform Themselves

33 mins; October 19, 2025

AI Alignment - Can We Make AI Safe? (Narration Only)

31 mins; October 16, 2025

AI Alignment - Can We Make AI Safe?

32 mins; October 16, 2025

Why Data Centers in Space Could Launch a New Space Economy?

14 mins; October 13, 2025

Why Data Centers in Space Could Launch a New Space Economy? (Narration Only)

14 mins; October 13, 2025

Dyson Spheres and Solar Commerce: The Birth of a Stellar Economy (Narration Only)

32 mins; October 12, 2025

Dyson Spheres and Solar Commerce: The Birth of a Stellar Economy

33 mins; October 12, 2025

The Fermi Paradox - Did a Natural Nuclear Reactor Spark All Life?

33 mins; October 09, 2025

The Fermi Paradox - Did a Natural Nuclear Reactor Spark All Life? (Narration Only)

32 mins; October 09, 2025

Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star (Narration Only)

23 mins; October 05, 2025

Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star

23 mins; October 05, 2025

After Mars - 8 Candidates For Where Humanity Should Go Next

31 mins; October 02, 2025

After Mars - 8 Candidates For Where Humanity Should Go Next (Narration Only)

30 mins; October 02, 2025

New Dwarf Planet Discovered: A Minor Planet With a Major Future?

12 mins; September 30, 2025

New Dwarf Planet Discovered: A Minor Planet With a Major Future? (Narration Only)

11 mins; September 30, 2025

Exploring The Multiverse (Narration Only)

37 mins; September 28, 2025

Exploring The Multiverse

37 mins; September 28, 2025

Orbital Foundries & Zero-G Manufacturing - Building in Space (Narration Only)

31 mins; September 25, 2025

Orbital Foundries & Zero-G Manufacturing - Building in Space

32 mins; September 25, 2025

Is 3I/ATLAS an Alien Artifact? (Narration Only)

27 mins; September 23, 2025

Is 3I/ATLAS an Alien Artifact?

27 mins; September 23, 2025

Life in Methane Oceans: Could Aliens Evolve on Titan-like Worlds?

25 mins; September 20, 2025

Life in Methane Oceans: Could Aliens Evolve on Titan-like Worlds? (Narration Only)

25 mins; September 20, 2025

Space Habitat Clusters & Conglomerations

37 mins; September 18, 2025

Space Habitat Clusters & Conglomerations (Narration Only)

37 mins; September 18, 2025

Life on Mars? Perseverance’s Sapphire Canyon Discovery (Narration Only)

12 mins; September 16, 2025

Life on Mars? Perseverance’s Sapphire Canyon Discovery

12 mins; September 16, 2025

Feudal Futures - Knights & Nobles in the Space Age (Narration Only)

26 mins; September 14, 2025

Feudal Futures - Knights & Nobles in the Space Age

26 mins; September 14, 2025

Colonial Economies - How Do You Make Money on a New Planet? (Narration Only)

33 mins; September 11, 2025

Colonial Economies - How Do You Make Money on a New Planet?

34 mins; September 11, 2025

Could We Accidentally Destroy the Universe?

34 mins; September 07, 2025

Could We Accidentally Destroy the Universe? (Narration Only)

33 mins; September 07, 2025

Orbital Arcologies: Mega-Cities in Space

30 mins; September 04, 2025

Orbital Arcologies: Mega-Cities in Space (Narration Only)

29 mins; September 04, 2025

The 10 Best Great Filters That Could Explain the Fermi Paradox (Narration Only)

39 mins; September 02, 2025

The 10 Best Great Filters That Could Explain the Fermi Paradox

39 mins; September 02, 2025

Jupiter Brains & Mega Minds (Narration Only)

41 mins; August 31, 2025

Jupiter Brains & Mega Minds

41 mins; August 31, 2025

After the Singularity - What Life Would Be Like If A Technological Singularity Happened? (Narration Only)

33 mins; August 28, 2025

After the Singularity - What Life Would Be Like If A Technological Singularity Happened?

33 mins; August 28, 2025

Lunar Industrial Parks - The First Factories Beyond Earth (Narration Only)

23 mins; August 24, 2025

Lunar Industrial Parks - The First Factories Beyond Earth

23 mins; August 24, 2025

Building a Dyson Swarm from Scratch (Narration Only)

30 mins; August 21, 2025

Building a Dyson Swarm from Scratch

23 mins; August 21, 2025

Ancient Alien Artifacts - Cosmic Relics Of A Dangerous Past (Narration Only)

29 mins; August 17, 2025

Ancient Alien Artifacts - Cosmic Relics Of A Dangerous Past

30 mins; August 17, 2025

Colonizing Rogue Planets (Narration Only)

27 mins; August 14, 2025

Colonizing Rogue Planets

28 mins; August 14, 2025

The Great Scientific Scams - From Snake Oil to Cold Fusion

27 mins; August 10, 2025

The Great Scientific Scams - From Snake Oil to Cold Fusion (Narration Only)

27 mins; August 10, 2025

The Fermi Paradox & The Hivemind Dilemma

29 mins; August 07, 2025

The Fermi Paradox & The Hivemind Dilemma (Narration Only)

29 mins; August 07, 2025

Galaxy-Scale Megastructures & Kardashev-3 Civilizations (Narration Only)

50 mins; August 03, 2025

Galaxy-Scale Megastructures & Kardashev-3 Civilizations

50 mins; August 03, 2025

Epochs of the Universe - The Cosmic Clock & Civilization

46 mins; July 31, 2025

Epochs of the Universe - The Cosmic Clock & Civilization (Narration Only)

46 mins; July 31, 2025

The 10 Best Alien Invasion Strategies (Narration Only)

22 mins; July 28, 2025

The 10 Best Alien Invasion Strategies

23 mins; July 28, 2025

Vaults of Eternity - Planetary Archives & Stasis (Narration Only)

33 mins; July 27, 2025

Vaults of Eternity - Planetary Archives & Stasis

33 mins; July 27, 2025

Materials For Space Elevators - From Carbon Nanotubes To Graphene And Beyond...

27 mins; July 24, 2025

Materials For Space Elevators - From Carbon Nanotubes To Graphene And Beyond... (Narration Only)

28 mins; July 24, 2025

Before the Big Bang - What Came Before Time? (Narration Only)

27 mins; July 20, 2025

Before the Big Bang - What Came Before Time?

28 mins; July 20, 2025

The Ethics of Transhumanism

40 mins; July 17, 2025

The Ethics of Transhumanism (Narration Only)

40 mins; July 17, 2025

How Would Aliens Behave?

30 mins; July 13, 2025

How Would Aliens Behave? (Narration Only)

29 mins; July 13, 2025

Spaceport Innovations - Designing the Next Generation of Launch Sites

29 mins; July 10, 2025

Spaceport Innovations - Designing the Next Generation of Launch Sites (Narration Only)

29 mins; July 10, 2025

What If the Big Bang Never Happened?

26 mins; July 06, 2025

The Economics of a Post-Scarcity Universe - What Happens When Everything Is Free? (Narration Only)

35 mins; July 03, 2025

The Economics of a Post-Scarcity Universe - What Happens When Everything Is Free?

35 mins; July 03, 2025

The 10 Worst Alien Invasion Strategies

17 mins; July 01, 2025

The 10 Worst Alien Invasion Strategies (Narration Only)

16 mins; July 01, 2025

ISRU: In-Situ Resource Utilization (Narration Only)

29 mins; June 29, 2025

ISRU: In-Situ Resource Utilization - From Regolith to Rocket Fuel (Narration Only)

31 mins; June 29, 2025

ISRU: In-Situ Resource Utilization - From Regolith to Rocket Fuel

31 mins; June 29, 2025

ISRU: In-Situ Resource Utilization

29 mins; June 29, 2025

Cosmic Megafauna - Could Giant Alien Life Forms Exist? (Narration Only)

40 mins; June 26, 2025

Cosmic Megafauna - Could Giant Alien Life Forms Exist?

40 mins; June 26, 2025

How Colonizing Space Benefits Earth - The Ground-Level Gains of a Galactic Future (Narration Only)

22 mins; June 22, 2025

How Colonizing Space Benefits Earth - The Ground-Level Gains of a Galactic Future

23 mins; June 22, 2025

Space Elevator Economics - Building And Operating A Superhighway To Space

38 mins; June 19, 2025

Space Elevator Economics - Building And Operating A Superhighway To Space (Narration Only)

38 mins; June 19, 2025

How Hard Would It Be to Terraform Venus?

18 mins; June 17, 2025

The Terraforming Compendium - From Barren Rocks to Living Worlds (Narration Only)

137 hours 2 mins; June 15, 2025

The Terraforming Compendium - From Barren Rocks to Living Worlds

137 hours 57 mins; June 15, 2025

Interstellar Travel: Can We Survive the Long Journey? (Narration Only)

33 mins; June 12, 2025

Interstellar Travel: Can We Survive the Long Journey?

34 mins; June 12, 2025

Could We See a Second Big Bang?

15 mins; June 10, 2025

How Many Alien Civilizations Are There? (Narration Only)

32 mins; June 08, 2025

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Science & Futurism with Isaac Arthur

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