Science & Futurism with Isaac Arthur

Latest Episodes:

Water Shielded Starships - Surviving Radiation in Deep Space (Narration Only) Jun 28, 2026

Show notes

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/isaacarthur

Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur

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Credits:

Fishbowl Starships Water As Shielding

Episode 721; June 1, 2025; Nebula Exclusive

Written, Produced, & Narrated by: Isaac Arthur

Graphics: Bryan Versteeg, Jeremy Jozwik, Udo Schroeter

Select imagery/video supplied by Getty Images

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Taras 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.

Water Shielded Starships - Surviving Radiation in Deep Space Jun 28, 2026

Show notes

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

Check 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/

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🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur

💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits:

Fishbowl Starships Water As Shielding

Episode 721; June 1, 2025; Nebula Exclusive

Written, Produced, & Narrated by: Isaac Arthur

Graphics: Bryan Versteeg, Jeremy Jozwik, Udo Schroeter

Select imagery/video supplied by Getty Images

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Taras 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.

Antimatter Containment - Bottling the Lightning Jun 25, 2026

Show notes

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/isaacarthur

Watch 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

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💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits:

Antimatter Containment - Bottling the Lightning

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

0:00 Intro

1:29 Bottling Lightning – Why Antimatter Is So Hard to Hold

3:57 How We Do It Today – Traps, Fields, and Tiny Amounts

10:31 Scaling the Impossible – From Lab Curiosity to Fuel Tank

15:08 Starship Fuel and Doomsday Risks

20:27 Nebula

21:42 Beyond Bottles – Rethinking How We Contain Antimatter

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Antimatter Containment - Bottling the Lightning (Narration Only) Jun 25, 2026

Show notes

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/isaacarthur

Watch 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/53GAShE

Credits:

Antimatter Containment - Bottling the Lightning

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

0:00 Intro

1:29 Bottling Lightning – Why Antimatter Is So Hard to Hold

3:57 How We Do It Today – Traps, Fields, and Tiny Amounts

10:31 Scaling the Impossible – From Lab Curiosity to Fuel Tank

15:08 Starship Fuel and Doomsday Risks

20:27 Nebula

21:42 Beyond Bottles – Rethinking How We Contain Antimatter

See 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 Second Earth Nearby? Jun 23, 2026

Show notes

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/isaacarthur

Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

Check 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/53GAShE

Credits:

What If We Found a Second Earth Nearby?

Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:26 What Counts as a “Second Earth”?

4:34 The Hidden Twin

6:24 The Real Discovery: A Nearby Earth

8:42 If It Has Life

9:17 Alien Life, But Compatible

11:15 Familiar Life - Too Familiar

13:26 Gods & Monsters

14:36 If It’s Barren - but Ready

18:00 The Rush: Who Gets a Whole World?

20:49 The Economics of a Second Earth

23:30 How Do You Divide a Planet?

26:27 The Long View: A Second Earth Changes Everything

See 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 Second Earth Nearby? (Narration Only) Jun 23, 2026

Show notes

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/isaacarthur

Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it

Check 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/53GAShE

Credits:

What If We Found a Second Earth Nearby?

Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:26 What Counts as a “Second Earth”?

4:34 The Hidden Twin

6:24 The Real Discovery: A Nearby Earth

8:42 If It Has Life

9:17 Alien Life, But Compatible

11:15 Familiar Life - Too Familiar

13:26 Gods & Monsters

14:36 If It’s Barren - but Ready

18:00 The Rush: Who Gets a Whole World?

20:49 The Economics of a Second Earth

23:30 How Do You Divide a Planet?

26:27 The Long View: A Second Earth Changes Everything

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Why Haven’t We Found Dyson Spheres Yet? (Narration Only) Jun 20, 2026

Show notes

From Dysonian SETI to waste heat and galactic timelines, we explore why we haven’t found Dyson Spheres—and what their absence reveals about civilization.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch 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/

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🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur

💬 SFIA Discord Server: https://discord.gg/53GAShE

Credits:

Why Haven’t We Found Dyson Spheres Yet?

Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images, Jeremy Jozwik, Ken York, Sergio Botero

Chapters

0:00 Intro

2:41 What Could We Actually See?

9:11 The Timeline Problem

12:24 Looking Out Is Looking Back

17:42 The Dyson Dilemma

26:07 Alternative Paths: Civilizations That Don’t Expand

29:26 Energy, Efficiency, and the Problem of Waste Heat

33:21 Nebula

34:22 The Silence of the Spheres

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Why Haven’t We Found Dyson Spheres Yet? Jun 20, 2026

Show notes

From Dysonian SETI to waste heat and galactic timelines, we explore why we haven’t found Dyson Spheres—and what their absence reveals about civilization.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch 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/53GAShE

Credits:

Why Haven’t We Found Dyson Spheres Yet?

Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images, Jeremy Jozwik, Ken York, Sergio Botero

Chapters

0:00 Intro

2:41 What Could We Actually See?

9:11 The Timeline Problem

12:24 Looking Out Is Looking Back

17:42 The Dyson Dilemma

26:07 Alternative Paths: Civilizations That Don’t Expand

29:26 Energy, Efficiency, and the Problem of Waste Heat

33:21 Nebula

34:22 The Silence of the Spheres

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

The Physics of FTL Travel Jun 18, 2026

Show notes

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch 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/53GAShE

Credits:

The Physics of FTL Travel

Written, Produced & Narrated by: Isaac Arthur

Editor: Lukas Konecny

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

0:12 Faster Than Light Is the Wrong Question

4:18 Spacetime Engineering: Moving the Map Instead of the Ship

5:24 Warp Drives: Surfing Spacetime

11:46 Wormholes: Shortcuts with a Side of Time Travel

13:20 Hyperspace: Shortcuts Through the Bulk

15:11 Solitons: The Positive Energy Challenge

17:35 The Krasnikov Tube: Building a Star-Road

20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders

25:05 Tachyons: The Simplest Way to Break Time

28:04 Vacuum & Time-Advance Effects: When Causality Bends, Just a Little

32:19 Quantum Red Herrings

35:42 Nebula

36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating Physics

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

The Physics of FTL Travel (Narration Only) Jun 18, 2026

Show notes

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur

Watch 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/53GAShE

Credits:

The Physics of FTL Travel

Written, Produced & Narrated by: Isaac Arthur

Editor: Lukas Konecny

Music Courtesy of Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

0:12 Faster Than Light Is the Wrong Question

4:18 Spacetime Engineering: Moving the Map Instead of the Ship

5:24 Warp Drives: Surfing Spacetime

11:46 Wormholes: Shortcuts with a Side of Time Travel

13:20 Hyperspace: Shortcuts Through the Bulk

15:11 Solitons: The Positive Energy Challenge

17:35 The Krasnikov Tube: Building a Star-Road

20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders

25:05 Tachyons: The Simplest Way to Break Time

28:04 Vacuum & Time-Advance Effects: When Causality Bends, Just a Little

32:19 Quantum Red Herrings

35:42 Nebula

36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating Physics

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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