Science & Futurism with Isaac Arthur

Latest Episodes:

Alien Overlords Have Conquered Earth... Now What? (Narration Only) Dec 18, 2025

Show notes

The invasion is over. The aliens won. Now humanity must live under their rule. Explore the aftermath of conquest—governance, rebellion, culture, survival, and the strange futures that follow.

Watch my exclusive video Rogue AI Empires: https://nebula.tv/videos/isaacarthur-rogue-ai-empires-when-machines-expand-without-us

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

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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

Credits:

Alien Overlords Have Conquered Earth... Now What?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone & Chris Zabriskie

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

Alien Overlords Have Conquered Earth... Now What? Dec 18, 2025

Show notes

The invasion is over. The aliens won. Now humanity must live under their rule. Explore the aftermath of conquest—governance, rebellion, culture, survival, and the strange futures that follow.

Watch my exclusive video Rogue AI Empires: https://nebula.tv/videos/isaacarthur-rogue-ai-empires-when-machines-expand-without-us

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

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Alien Overlords Have Conquered Earth... Now What?

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone & Chris Zabriskie

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

Strange Lifeforms: The Chemistry of Alien Worlds (Narration Only) Dec 16, 2025

Show notes

Explore the universe’s strangest possible life—boron creatures, sulfur beasts, crystal minds, ammonia swimmers, methane organisms, and more in this deep dive into alien chemistry.

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Strange Lifeforms: The Chemistry of Alien Worlds

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

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

Strange Lifeforms: The Chemistry of Alien Worlds Dec 16, 2025

Show notes

Explore the universe’s strangest possible life—boron creatures, sulfur beasts, crystal minds, ammonia swimmers, methane organisms, and more in this deep dive into alien chemistry.

Any comments, corrections, or thoughts on the video? email Isaac.Arthur.Utube@gmail.com

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Strange Lifeforms: The Chemistry of Alien Worlds

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

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

Vacuum Decay - Escaping the End of Physics Itself (Narration Only) Dec 14, 2025

Show notes

What if the Universe suddenly changed its laws? Discover the science behind vacuum decay, the ultimate cosmic doomsday, and how life might escape it.

Go to the link: https://imprintapp.com/isaacarthur to get 25% off an annual membership

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Vacuum Decay - Escaping the End of Physics Itself

Written, Produced & Narrated by: Isaac Arthur

Editor: Lukas Konecny

Select imagery/video supplied by Getty Images

Music by Stellardrone

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

Vacuum Decay - Escaping the End of Physics Itself Dec 14, 2025

Show notes

What if the Universe suddenly changed its laws? Discover the science behind vacuum decay, the ultimate cosmic doomsday, and how life might escape it.

Go to the link: https://imprintapp.com/isaacarthur to get 25% off an annual membership

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Vacuum Decay - Escaping the End of Physics Itself

Written, Produced & Narrated by: Isaac Arthur

Editor: Lukas Konecny

Select imagery/video supplied by Getty Images

Music by Stellardrone

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

Bubble Habitats & Zero-G Megastructures Dec 11, 2025

Show notes

Explore the future of living in weightlessness—bubble habitats, floating cities, and zero-gravity megastructures where humanity learns to thrive without up or down.

Get a 50% Match for your donation - https://www.farmkind.giving/isaacarthur

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Bubble Habitats & Zero-G Megastructures

Written, Produced & Narrated by: Isaac Arthur

Graphics: Jeremy Jozwik, Sergio Botero, YD Visual/Ken York

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

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

Bubble Habitats & Zero-G Megastructures (Narration Only) Dec 11, 2025

Show notes

Explore the future of living in weightlessness—bubble habitats, floating cities, and zero-gravity megastructures where humanity learns to thrive without up or down.

Get a 50% Match for your donation - https://www.farmkind.giving/isaacarthur

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

Bubble Habitats & Zero-G Megastructures

Written, Produced & Narrated by: Isaac Arthur

Graphics: Jeremy Jozwik, Sergio Botero, YD Visual/Ken York

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

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

The Myth of Mutation Why Superpowers Don’t Evolve (and What Might) Dec 09, 2025

Show notes

Superpowers make great fiction, but evolution doesn’t work that way. We explore why mutations can’t give us instant abilities—and what real science could create instead.

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

The Myth of Mutation Why Superpowers Don’t Evolve (and What Might)

Written, Produced & Narrated by: Isaac Arthur

Editors: Lukas Konecny

Select imagery/video supplied by Getty Images

Music by Epidemic Sound: http://nebula.tv/epidemic

Chapters

0:00 Intro

3:05 How Stars Work: A Brief Guide

9:44 The Main Sequence Stars, A Through M

11:12 A-Type Stars

12:00 F-Type Stars

13:00 G-Type Stars

14:12 K-Type Stars

15:06 M-Type Stars

16:55 Brown Dwarfs

18:15 Red Giants

21:00 Dead Stars

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

The Myth of Mutation Why Superpowers Don’t Evolve... and What Might (Narration Only) Dec 09, 2025

Show notes

Superpowers make great fiction, but evolution doesn’t work that way. We explore why mutations can’t give us instant abilities—and what real science could create instead.

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

Visit our Website: http://www.isaacarthur.net

Join Nebula: https://go.nebula.tv/isaacarthur

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: https://www.reddit.com/r/IsaacArthur/

Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

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

Credits:

The Myth of Mutation Why Superpowers Don’t Evolve (and What Might)

Written, Produced & Narrated by: Isaac Arthur

Editors: Lukas Konecny