Science & Futurism with Isaac Arthur

Latest Episodes:

Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star (Narration Only) Oct 05, 2025

Show notes

Solar storms are inevitable; disaster isn’t. We explore the physics of flares and CMEs, historical extremes, and realistic defenses—detection, delay, and planetary-scale shielding—to weather the Sun’s worst days.

Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles

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Use the link https://gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $36.

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

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

Credits:

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

Written, Produced & Narrated by: Isaac Arthur

Graphics: Mafic Studios, Sergio Botero

Select imagery/video supplied by Getty Images

Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

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

Solar Flares and Coronal Mass Ejections - Defending Earth from Our Own Star Oct 05, 2025

Show notes

Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles

Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur

Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur

Use the link https://gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $36.

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:

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

Written, Produced & Narrated by: Isaac Arthur

Graphics: Mafic Studios, Sergio Botero

Select imagery/video supplied by Getty Images

Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

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

After Mars - 8 Candidates For Where Humanity Should Go Next (Narration Only) Oct 02, 2025

Show notes

Mars may be humanity’s next great home—but it’s not the finish line. From floating cities above Venus to mining Mercury and the Asteroid Belt, to building bases on the Jovian moons and Titan, we explore which destinations might follow Mars and how each could shape our future in space.

Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles

Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur

Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur

Use the link https://gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $36.

Join this channel to get access to perks:

https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join

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

Chapters

0:00 Intro

2:02 Why the Moon Should Come First

3:47 Candidate #1: Near-Earth Asteroids (NEAs)

7:52 Candidate #2: Venus

11:35 Candidate #3: Mercury

15:16 Candidate #4: Lagrange Points & Earth-Orbit Infrastructure

17:51 Candidate #5: Jovian Moons

20:26 Nebula

22:06 Candidate #6: Titan (Saturn’s Moon)

23:46 Candidate #7: The Asteroid Belt

25:44 Candidate #8: Comet Mining & Outer System Expansion

27:56 Cross-Support: Who Helps Whom?

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

After Mars - 8 Candidates For Where Humanity Should Go Next Oct 02, 2025

Show notes

Watch my exclusive video The Fermi Paradox - Civilization Extinction Cycles: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-civilization-extinction-cycles

Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur

Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur

Use the link https://gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $36.

Join this channel to get access to perks:

https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join

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

Chapters

0:00 Intro

2:02 Why the Moon Should Come First

3:47 Candidate #1: Near-Earth Asteroids (NEAs)

7:52 Candidate #2: Venus

11:35 Candidate #3: Mercury

15:16 Candidate #4: Lagrange Points & Earth-Orbit Infrastructure

17:51 Candidate #5: Jovian Moons

20:26 Nebula

22:06 Candidate #6: Titan (Saturn’s Moon)

23:46 Candidate #7: The Asteroid Belt

25:44 Candidate #8: Comet Mining & Outer System Expansion

27:56 Cross-Support: Who Helps Whom?

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

New Dwarf Planet Discovered: A Minor Planet With a Major Future? (Narration Only) Sep 30, 2025

Show notes

The discovery of 2017 OF201 reminds us that even small worlds can hold vast potential — not just as frozen orbs, but as stepping stones for interstellar civilization.

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/

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

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

Credits:

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

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:11 What Counts as a Dwarf Planet?

3:47 The New Arrival: 2017 OF201

4:47 From Iceball to Megastructure

6:03 Waypoint to the Stars

8:38 Lessons from Pluto and the Dwarf Planet Census

9:43 Engineering Challenges & Opportunities

10:50 Extrapolating the Frontier

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

New Dwarf Planet Discovered: A Minor Planet With a Major Future? Sep 30, 2025

Show notes

The discovery of 2017 OF201 reminds us that even small worlds can hold vast potential — not just as frozen orbs, but as stepping stones for interstellar civilization.

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:

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

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

1:11 What Counts as a Dwarf Planet?

3:47 The New Arrival: 2017 OF201

4:47 From Iceball to Megastructure

6:03 Waypoint to the Stars

8:38 Lessons from Pluto and the Dwarf Planet Census

9:43 Engineering Challenges & Opportunities

10:50 Extrapolating the Frontier

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

Exploring The Multiverse (Narration Only) Sep 28, 2025

Show notes

The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.

Support us on Patreon: https://www.patreon.com/IsaacArthur

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Facebook Group: https://www.facebook.com/groups/1583992725237264/

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

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

Credits:

Exploring The Multiverse

Originally aired as Episode 462b; September 1, 2024

Produced, Written & Narrated by: Isaac Arthur

Editors: Thomas Owens

Select imagery/video supplied by Getty Images

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

Stellardrone, "Red Giant", "Ultra Deep Field"

Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"

Taras Harkavyi, "Alpha and ..."

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

Exploring The Multiverse Sep 28, 2025

Show notes

The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.

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:

Exploring The Multiverse

Originally aired as Episode 462b; September 1, 2024

Produced, Written & Narrated by: Isaac Arthur

Editors: Thomas Owens

Select imagery/video supplied by Getty Images

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

Stellardrone, "Red Giant", "Ultra Deep Field"

Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"

Taras Harkavyi, "Alpha and ..."

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

Why the Future Will Be Built in Space Sep 25, 2025

Show notes

Gravity has always shackled industry, but orbit frees us to build in ways Earth never allowed. This episode explores the rise of orbital foundries and the industries they unlock.

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:

Orbital Foundries & Zero-G Manufacturing: Building in Space

Written, Produced & Narrated by: Isaac Arthur

Graphics: Jeremy Jozwik, Ken York, Udo Schroeter

Select imagery/video supplied by Getty Images

Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

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

Why the Future Will Be Built in Space (Narration Only) Sep 25, 2025

Show notes

Gravity has always shackled industry, but orbit frees us to build in ways Earth never allowed. This episode explores the rise of orbital foundries and the industries they unlock.

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:

Orbital Foundries & Zero-G Manufacturing: Building in Space

Written, Produced & Narrated by: Isaac Arthur

Graphics: Jeremy Jozwik, Ken York, Udo Schroeter

Select imagery/video supplied by Getty Images

Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator