Science & Futurism with Isaac Arthur

Latest Episodes:

The Wow! Signal: Alien Message, Cosmic Fluke, or SETI’s Best False Alarm? Sep 03, 2026

Show notes

For 72 seconds, the universe seemed to answer SETI. The Wow! Signal was strong, narrowband, and strangely convincing... but it never came back. So what actually happened in 1977?

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Credits:

The Wow! Signal: Alien Message, Cosmic Fluke, or SETI’s Best False Alarm?

Written, Produced & Narrated by: Isaac Arthur

Graphics: Ken York & Sergio Botero

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.

The Wow! Signal: Alien Message, Cosmic Fluke, or SETI’s Best False Alarm? (Narration Only) Sep 03, 2026

Show notes

For 72 seconds, the universe seemed to answer SETI. The Wow! Signal was strong, narrowband, and strangely convincing... but it never came back. So what actually happened in 1977?

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

Checkout Alien Data Arks, Outsider Aliens, and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 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 Wow! Signal: Alien Message, Cosmic Fluke, or SETI’s Best False Alarm?

Written, Produced & Narrated by: Isaac Arthur

Graphics: Ken York & Sergio Botero

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.

Dark Biospheres - Life on Worlds Without Sunlight Aug 29, 2026

Show notes

Could life thrive without sunlight? Explore dark biospheres on rogue planets, icy moons, and buried oceans, where chemistry, tidal heating, and geothermal energy may sustain alien ecosystems in eternal night.

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Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

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

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

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Credits:

Dark Biospheres - Life on Worlds Without Sunlight [Extended Edition]

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music Courtesy of 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.

Dark Biospheres - Life on Worlds Without Sunlight (Narration Only) Aug 29, 2026

Show notes

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

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

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

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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:

Dark Biospheres - Life on Worlds Without Sunlight [Extended Edition]

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

Music Courtesy of 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.

What Happens Inside a Black Hole? (Narration Only) Aug 27, 2026

Show notes

What really happens when you fall into a black hole? We explore event horizons, spaghettification, what you’d see inside, possible gateways, and why future civilizations might deliberately build around these cosmic engines.

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/

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

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

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Credits:

What Happens Inside a Black Hole?

Written, Produced & Narrated by: Isaac Arthur

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

Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

0:13 What a Black Hole Actually Is

10:04 Falling In: What You Actually Experience

18:00 What Might Be Inside… and Why We Can’t Know

22:10 Why You’d Fly Toward a Black Hole

24:51 Why Civilizations Would Build Around Them

27:37 Outside Reality

28:30 Civilizations Beneath the Horizon—and Beyond It

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

What Happens Inside a Black Hole? Aug 27, 2026

Show notes

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 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 Happens Inside a Black Hole?

Written, Produced & Narrated by: Isaac Arthur

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

Stellardrone & Chris Zabriskie

Select imagery/video supplied by Getty Images

Chapters

0:00 Intro

0:13 What a Black Hole Actually Is

10:04 Falling In: What You Actually Experience

18:00 What Might Be Inside… and Why We Can’t Know

22:10 Why You’d Fly Toward a Black Hole

24:51 Why Civilizations Would Build Around Them

27:37 Outside Reality

28:30 Civilizations Beneath the Horizon—and Beyond It

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

Megacorporations in Space Aug 23, 2026

Show notes

From company towns in orbit to corporate empires among the stars, could megacorporations build the space frontier—or end up owning the air, the docks, and the only ride home?

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 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:

Megacorporations in Space

Written, Produced & Narrated by: Isaac Arthur

Editors: Thomas Owens

Graphics: Fishy Tree & Udo Schroeter

Music Courtesy of Stellardrone, Dark Future & Chris Zabriskie

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.

Megacorporations in Space (Narration Only) Aug 23, 2026

Show notes

From company towns in orbit to corporate empires among the stars, could megacorporations build the space frontier—or end up owning the air, the docks, and the only ride home?

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 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:

Megacorporations in Space

Written, Produced & Narrated by: Isaac Arthur

Editors: Thomas Owens

Graphics: Fishy Tree & Udo Schroeter

Music Courtesy of Stellardrone, Dark Future & Chris Zabriskie

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.

The First Generation Problem – Who Shapes a New Civilization’s Values? Aug 20, 2026

Show notes

What happens when a colony ship’s children inherit a mission they never chose? We explore the values, conflicts, and founding myths that shape civilizations born between Earth and the stars.

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 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:

The First Generation Problem – Who Shapes a New Civilization’s Values?

Editors: Donagh Broderick

Written, Produced & Narrated by: Isaac Arthur

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

Stellardrone & Chris Zabriskie

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.

The First Generation Problem – Who Shapes a New Civilization’s Values? (Narration Only) Aug 20, 2026

Show notes

What happens when a colony ship’s children inherit a mission they never chose? We explore the values, conflicts, and founding myths that shape civilizations born between Earth and the stars.

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

Checkout Otusider Aliens and our Alien Life Collection: https://nebula.tv/isaacarthur/alien-life-collection

🛒 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 First Generation Problem – Who Shapes a New Civilization’s Values?