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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

00:15:46

Could We See a Second Big Bang?

Science & Futurism with Isaac Arthur ·

2025/06/10

From quantum tunneling to cosmic inflation, we journey through the theories behind the Big Bang and beyond — and ask the big question: could another Big Bang be in our cosmic future?

en

00:32:18

How Many Alien Civilizations Are There? (Narration Only)

Science & Futurism with Isaac Arthur ·

2025/06/08

Are we alone in the universe—or just early to the party? We’ll explore the math, models, and megastructures that might answer how many alien civilizations are out there, and why the night sky remains so quiet.

en

00:32:50

How Many Alien Civilizations Are There?

Science & Futurism with Isaac Arthur ·

2025/06/08

Are we alone in the universe—or just early to the party? We’ll explore the math, models, and megastructures that might answer how many alien civilizations are out there, and why the night sky remains so quiet.

en

00:51:50

Orbital Shipyards - Building Fleets in Space...

Science & Futurism with Isaac Arthur ·

2025/06/05

A new industrial revolution is coming—not on Earth, but above it. This episode delves into how orbital shipyards will produce everything from shuttles to megastructures, changing how we explore and inhabit space.

en

00:52:21

Orbital Shipyards - Building Fleets in Space

Science & Futurism with Isaac Arthur ·

2025/06/05

A new industrial revolution is coming—not on Earth, but above it. This episode delves into how orbital shipyards will produce everything from shuttles to megastructures, changing how we explore and inhabit space.

en

00:27:11

5 Fermi Paradox Explanations I Love… and 7 That Fall...

Science & Futurism with Isaac Arthur ·

2025/05/31

The Fermi Paradox asks why, in a vast and ancient universe, we see no signs of alien life. In this episode, we explore five explanations that make sense—and seven popular ones that, despite sounding good, fall flat under closer scrutiny.

en

00:27:11

5 Fermi Paradox Explanations I Love… and 7 That Fall...

Science & Futurism with Isaac Arthur ·

2025/05/31

The Fermi Paradox asks why, in a vast and ancient universe, we see no signs of alien life. In this episode, we explore five explanations that make sense—and seven popular ones that, despite sounding good, fall flat under closer scrutiny.

en

00:42:59

Stormtroopers: Elite Warriors and the Evolution of...

Science & Futurism with Isaac Arthur ·

2025/05/29

From trench-busting stormtroopers to galaxy-spanning clone legions, we explore the evolution of elite soldiers and how sci-fi reimagines the future of warfare.

en

00:43:36

Stormtroopers: Elite Warriors and the Evolution of...

Science & Futurism with Isaac Arthur ·

2025/05/29

From trench-busting stormtroopers to galaxy-spanning clone legions, we explore the evolution of elite soldiers and how sci-fi reimagines the future of warfare.

en

00:25:52

Ancient Machine Monitors: Alien Watchdogs, AI...

Science & Futurism with Isaac Arthur ·

2025/05/25

From Clarke’s Sentinel to deep-space defense systems, this episode dives into the idea of machine monitors—guardians of planets, civilizations, and secrets too ancient to name.

en

00:32:58

Worldhouses: Building Planets, One Dome at a Time

Science & Futurism with Isaac Arthur ·

2025/05/15

Why wait centuries to terraform Mars when you could build a habitable world overnight? In this episode, we explore the concept of Worldhouses—planet-spanning domes that let us colonize hostile worlds by enclosing them beneath engineered skies, one dome at a time.

en

00:32:25

Worldhouses & Paraterraforming (Narration Only)

Science & Futurism with Isaac Arthur ·

2025/05/15

Why wait centuries to terraform Mars when you could build a habitable world overnight? In this episode, we explore the concept of Worldhouses—planet-spanning domes that let us colonize hostile worlds by enclosing them beneath engineered skies, one dome at a time.

en

00:34:02

Post-Biological Civilizations: Life Beyond Flesh and...

Science & Futurism with Isaac Arthur ·

2025/05/11

What happens when intelligence escapes the bounds of flesh and bone? In this episode, we explore post-biological civilizations—entities that may trade biology for digital minds, machine bodies, or stranger forms still—and ask what becomes of identity, purpose, and humanity when the body is no longer required.

en

00:34:40

Post-Biological Civilizations: Life Beyond Flesh and...

Science & Futurism with Isaac Arthur ·

2025/05/11

What happens when intelligence escapes the bounds of flesh and bone? In this episode, we explore post-biological civilizations—entities that may trade biology for digital minds, machine bodies, or stranger forms still—and ask what becomes of identity, purpose, and humanity when the body is no longer required.

en

00:38:06

Cities of the Future – Megacities, Arcologies, and...

Science & Futurism with Isaac Arthur ·

2025/05/08

In tomorrow’s world, cities may rise into the clouds, dive beneath oceans, or float among the stars—join us as we journey through these radical urban frontiers.

en

00:37:33

Cities of the Future (Narration Only)

Science & Futurism with Isaac Arthur ·

2025/05/08

In tomorrow’s world, cities may rise into the clouds, dive beneath oceans, or float among the stars—join us as we journey through these radical urban frontiers.

en

00:47:02

The Alien Cold War: Silent Competition Among Dormant...

Science & Futurism with Isaac Arthur ·

2025/05/01

What if the galaxy isn’t empty—but locked in a silent Cold War between ancient alien empires? This episode explores the Dark Forest Theory, Interdiction Bubbles, and what it means if our galaxy is shaped by dormant, watchful civilizations playing a long game of survival and subtle dominance.

en

00:47:36

The Alien Cold War: Silent Competition Among Dormant...

Science & Futurism with Isaac Arthur ·

2025/05/01

What if the galaxy isn’t empty—but locked in a silent Cold War between ancient alien empires? This episode explores the Dark Forest Theory, Interdiction Bubbles, and what it means if our galaxy is shaped by dormant, watchful civilizations playing a long game of survival and subtle dominance.

en

00:25:59

Galactic Beacons: Teaching Tools or Tombstones?...

Science & Futurism with Isaac Arthur ·

2025/04/27

It can be hard to hear a signal 100 miles away—so what does it take to build a beacon loud enough to be heard 100,000 light years away? In this episode, we explore galactic beacons: powerful transmissions that may teach, warn, or outlast the minds that made them.

en

00:26:14

Galactic Beacons: Teaching Tools or Tombstones?

Science & Futurism with Isaac Arthur ·

2025/04/27

It can be hard to hear a signal 100 miles away—so what does it take to build a beacon loud enough to be heard 100,000 light years away? In this episode, we explore galactic beacons: powerful transmissions that may teach, warn, or outlast the minds that made them.

en

1,100 results

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