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PODCAST

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.

science

All Episodes

00:25:13

Panspermia: Could Alien Comets Be Seeding Life...

Science & Futurism with Isaac Arthur ·

2026/03/01

Could life on Earth have arrived from space? Explore panspermia, alien comets, and how life might spread across the galaxy.

en

00:25:26

Fleet Unity - Humanity’s First Interstellar Armada...

Science & Futurism with Isaac Arthur ·

2026/02/27

Humanity’s first interstellar ark becomes something bigger. Explore Fleet Unity—a roaming civilization, ship-turned-shipyard, and the birth of humanity’s first true interstellar armada.

en

00:26:02

Fleet Unity - Humanity’s First Interstellar Armada

Science & Futurism with Isaac Arthur ·

2026/02/26

Humanity’s first interstellar ark becomes something bigger. Explore Fleet Unity—a roaming civilization, ship-turned-shipyard, and the birth of humanity’s first true interstellar armada.

en

00:40:41

Big Alien Theory (Narration Only)

Science & Futurism with Isaac Arthur ·

2026/02/22

Why might alien intelligence evolve at gigantic scales? Big Alien Theory explores how size alone could silence advanced civilizations.

en

00:40:55

Big Alien Theory

Science & Futurism with Isaac Arthur ·

2026/02/22

Why might alien intelligence evolve at gigantic scales? Big Alien Theory explores how size alone could silence advanced civilizations.

en

00:31:26

Interstellar Relays - Moving Signals and Spaceships...

Science & Futurism with Isaac Arthur ·

2026/02/19

How interstellar relays could move data, cargo, and starships between stars using lasers, light sails, and cosmic-scale infrastructure.

en

00:31:11

Interstellar Relays - Moving Signals and Spaceships...

Science & Futurism with Isaac Arthur ·

2026/02/19

How interstellar relays could move data, cargo, and starships between stars using lasers, light sails, and cosmic-scale infrastructure.

en

00:27:33

Alien Mathematics

Science & Futurism with Isaac Arthur ·

2026/02/15

Is math truly universal—or just human? Explore how alien minds might think, count, and reason in ways we don’t recognize as mathematics at all.

en

00:27:07

Alien Mathematics (Narration Only)

Science & Futurism with Isaac Arthur ·

2026/02/15

Is math truly universal—or just human? Explore how alien minds might think, count, and reason in ways we don’t recognize as mathematics at all.

en

00:19:20

Space Hotels - How Close Are We to Vacationing in...

Science & Futurism with Isaac Arthur ·

2026/02/12

How close are we to vacationing in orbit? Space hotels, real costs, and the tipping point where space tourism becomes normal.

en

00:35:48

Wormhole Stableways – Constructing and Navigating...

Science & Futurism with Isaac Arthur ·

2026/02/08

Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization.

en

00:26:08

Deep Space Habitats – Designing Self-Sustaining...

Science & Futurism with Isaac Arthur ·

2026/02/05

From rogue planets to interstellar voids, discover how deep space habitats could support civilization without stars or planets.

en

00:26:33

Deep Space Habitats – Designing Self-Sustaining...

Science & Futurism with Isaac Arthur ·

2026/02/05

From rogue planets to interstellar voids, discover how deep space habitats could support civilization without stars or planets.

en

00:25:57

Does Humanity Need To Be Unified To Survive and...

Science & Futurism with Isaac Arthur ·

2026/01/29

Does humanity need unity to survive and settle space, or does competition drive progress? We examine five possible answers.

en

00:38:05

The Fermi Paradox: Air — Atmospheres as a Great...

Science & Futurism with Isaac Arthur ·

2026/01/27

Why is air the rarest and most crucial ingredient for life? We explore how atmospheres form, fail, and filter entire worlds—and how this shapes the Fermi Paradox and the search for alien civilizations.

en

00:38:11

The Fermi Paradox: Air — Atmospheres as a Great Filter

Science & Futurism with Isaac Arthur ·

2026/01/27

Why is air the rarest and most crucial ingredient for life? We explore how atmospheres form, fail, and filter entire worlds—and how this shapes the Fermi Paradox and the search for alien civilizations.

en

00:31:19

Asteroid City States – Living in Mobile Habitats...

Science & Futurism with Isaac Arthur ·

2026/01/22

Asteroid mines become mobile city-states. Explore how hollowed asteroids grow into sovereign habitats, economies, and civilizations.

en

00:30:55

Asteroid City States – Living in Mobile Habitats...

Science & Futurism with Isaac Arthur ·

2026/01/22

Asteroid mines become mobile city-states. Explore how hollowed asteroids grow into sovereign habitats, economies, and civilizations.

en

00:31:23

Hidden Alien Empires: Shadow Civilizations &...

Science & Futurism with Isaac Arthur ·

2026/01/18

The galaxy may not be empty. It may be hiding. Shadow civilizations, quiet empires, and the true meaning of cosmic silence.

en

00:30:54

Hidden Alien Empires: Shadow Civilizations &...

Science & Futurism with Isaac Arthur ·

2026/01/18

The galaxy may not be empty. It may be hiding. Shadow civilizations, quiet empires, and the true meaning of cosmic silence.

en

1,171 results

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