Discover the incredible engineering and visionary potential of Bernal Spheres, futuristic space habitats designed to sustain human life in the stars.

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Credits:

Megastructures: The Bernal Sphere

Episode 485; February 6, 2025

Written, Produced & Narrated by: Isaac Arthur

Editors: Ludwig Luska

Graphics: Bryan Versteeg, Fishy Tree, Jeremy Jozwik, Udo Schroeter

Select imagery/video supplied by Getty Images

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

Phase Shift, "Forest Night"

Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector"

Stellardrone, "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.

Discover the incredible engineering and visionary potential of Bernal Spheres, futuristic space habitats designed to sustain human life in the stars.

Watch my exclusive video Big Alien Theory https://nebula.tv/videos/isaacarthur-big-alien-theory

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 gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30.

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

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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:

Megastructures: The Bernal Sphere

Episode 485; February 6, 2025

Written, Produced & Narrated by: Isaac Arthur

Editors: Ludwig Luska

Graphics: Bryan Versteeg, Fishy Tree, Jeremy Jozwik, Udo Schroeter

Select imagery/video supplied by Getty Images

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

Phase Shift, "Forest Night"

Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector"

Stellardrone, "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.

Amid the swirling vastness of galaxies, each a cosmic city of stars and planets, the silence raises a compelling question: could the very nature of galaxies themselves hold the key to why intelligent life remains unseen?

Watch my exclusive video The Fermi Paradox: Air https://nebula.tv/videos/isaacarthur-the-fermi-paradox-air

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 gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30.

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

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

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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:

The Fermi Paradox: Galactic Great Filters

Episode 484; January 30, 2025

Written, Produced & Narrated by: Isaac Arthur

Select imagery/video supplied by Getty Images

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

Phase Shift, "Forest Night"

Chris Zabriskie, "Unfoldment, Revealment"

Stellardrone, "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.