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.

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Credits:
Strange Lifeforms: The Chemistry of Alien Worlds
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images

Strange Lifeforms: The Chemistry of Alien Worlds

From giant O-stars to dim brown dwarfs, we rank every stellar class by how well they could host life, Dyson swarms, and advanced civilizations across cosmic time.

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Which Stars Could We Live Around? Ranking Every Type of Star
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images

Which Stars Could We Live Around Ranking Every Type of Star (Narration Only)

Does the Universe stay quiet because alien species burn through fossil fuels and collapse? We explore alternative energy paths and ask if civilizations are doomed by geology.
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Credits:
The Fermi Paradox & Fossil Fuels
Written, Produced & Narrated by: Isaac Arthur
Editors: Alex Shenderov & Donagh Broderick
Select imagery/video supplied by Getty Images

The Fermi Paradox & Fossil Fuels (Narration Only)

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.

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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

Alien Overlords Have Conquered Earth... Now What? (Narration Only)

From giant O-stars to dim brown dwarfs, we rank every stellar class by how well they could host life, Dyson swarms, and advanced civilizations across cosmic time.

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Which Stars Could We Live Around? Ranking Every Type of Star
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images

Which Stars Could We Live Around? Ranking Every Type of Star (Narration Only)

Explore the hidden frontiers of the cosmos — from dark matter and rogue planets to quantum mysteries — and uncover the Universe’s greatest unopened gifts of discovery.

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Credits:
The Universe’s Unopened Gifts: Hidden Worlds and the Spirit of Discovery
Written, Produced & Narrated by: Isaac Arthur
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The Universe’s Unopened Gifts: Hidden Worlds and the Spirit of Discovery (Narration Only)

The Universe’s Unopened Gifts: Hidden Worlds and the Spirit of Discovery

Stars won’t last forever, but civilizations might. Join us as we journey into the post-stellar future, where Dyson remnants, black holes, and exotic physics could sustain life long after the galaxies fade.

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Credits:
Post-Stellar Civilizations [Extended Edition]
Episode 475a; December 1, 2024
Produced, Narrated & Written: Isaac Arthur
Editor: Jonathan Maltz
Graphics: Jeremy Jozwik, Ken York YD Visual, Steve Bowers, Udo Schroeter
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Post Stellar Civilizations - Life After The Last Star Fades (Narration Only)

Post Stellar Civilizations - Life After The Last Star Fades

Five sci-fi technologies becoming real today, from BCIs to space elevators.

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5 Sci-Fi Fantasies That Could Soon Become Reality
Written, Produced & Narrated by: Isaac Arthur
Editor: Donagh Broderick
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5 Sci-Fi Fantasies That Could Soon Become Reality

5 Sci-Fi Fantasies That Could Soon Become Reality (Narration Only)

Are Berserker probes hunting advanced life? Exploring the deadliest Fermi Paradox solution.

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Credits:
Berserker Aliens - The Deadliest Answer to the Fermi Paradox
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images
Music by Epidemic Sound: http://nebula.tv/epidemic

Berserker Aliens - The Deadliest Answer to the Fermi Paradox

Berserker Aliens - The Deadliest Answer to the Fermi Paradox (Narration Only)

From frozen habitats to millennia-long journeys, we explore the science behind cryogenic arks and deep-time interstellar travel.

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Cryogenic Arks – Sleeping Through the Ages
Written, Produced & Narrated by: Isaac Arthur
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Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

Cryogenic Arks – Sleeping Through the Ages

Cryogenic Arks – Sleeping Through the Ages (Narration Only)

Are we here by design, chance, or selection bias? The Anthropic Principle, fine-tuning, doomsday math, and Boltzmann brains.


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Credits: The Anthropic Principle – Are We Meant to Be Here, or Just Lucky?
Written, Produced & Narrated by: Isaac Arthur
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Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone & Chris Zabriskie

The Anthropic Principle – Are We Meant to Be Here, or Just Lucky?

The Anthropic Principle – Are We Meant to Be Here, or Just Lucky? (Narration Only)

How big could space habitats really get? From O’Neill cylinders to Ringworlds and Topopolises, we explore the true limits of megastructure scale.

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Credits:
How Big Could a Space Habitat Get?
Written, Produced & Narrated by:
Isaac Arthur
Editor: Tim Liusko
Graphics from Fishy Tree, Jarred Eagley, Jeremy Jozwik, J. Dixon, Ken York, Udo Schroeter
Music Courtesy of Chris Zabriskie & Stellardrone
Select imagery/video supplied by Getty Images
Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

How Big Could a Space Habitat Get? (Narration Only)

How Big Could a Space Habitat Get?

What if alien civilizations exist—but chose to hide? Exploring shadow empires, cosmic silence, and the limits of secrecy in space.

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Credits:
Hidden Alien Empires: Shadow Civilizations & Exostellar Realms
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images
Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

Hidden Alien Empires: Shadow Civilizations & Exostellar Realms (Narration Only)

Asteroid mines become mobile city-states. Explore how hollowed asteroids grow into sovereign habitats, economies, and civilizations.

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Credits:
Asteroid City States – Living in Mobile Habitats Powered by Resource Extraction
Written, Produced & Narrated by:
Isaac Arthur
Graphics from Bryan Versteeg, Fishy Tree,  Jeremy Jozwik
Music Courtesy of Chris Zabriskie & Stellardrone
Select imagery/video supplied by Getty Images
Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

Asteroid City States – Living in Mobile Habitats Powered by Resource Extraction

Asteroid City States – Living in Mobile Habitats Powered by Resource Extraction (Narration Only)

Why is air the rarest and most crucial ingredient for life? We explore how atmospheres form, fail, and filter entire worlds—and how this shapes the Fermi Paradox and the search for alien civilizations.

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Credits:
Produced, Narrated & Written: Isaac Arthur
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Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

The Fermi Paradox: Air — Atmospheres as a Great Filter (Narration Only)

Must humanity unite to colonize space, or can rivalry and diversity be our greatest strengths among the stars?

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Credits:
Does Humanity Need To Be Unified To Survive and Settle Space?
Written, Produced & Narrated by: Isaac Arthur
Editors: Donagh Broderick
Select imagery/video supplied by Getty Images
Music by Epidemic Sound: http://nebula.tv/epidemic & Stellardrone

Does Humanity Need To Be Unified To Survive and Settle Space? (Narration Only)

813 M1 26023 Does Humanity Need To Be Unified To Survive and Settle Space

We continue our look at possible explanations why life may be very rare in the Universe by examining our planet itself, and looking at which of its characteristic might be important to intelligence developing and how improbable those traits are for a given planet in a given solar system.

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Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Graphics Team:
Edward Nardella
Jarred Eagley
Justin Dixon
Katie Byrne
Misho Yordanov
Murat Mamkegh
Pierre Demet
Sergio Botero
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Luca de Rosa
Michael Gusevsky
Mitch Armstrong
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner

Fermi Paradox Great Filters: Rare Earth (Narration Only)

We conclude our look at possible explanations why life may be very rare in the Universe by looking at the evolutionary pathway to intelligence and the hurdles between life starting on a planet and migrating off of it. 

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Jarred Eagley
Justin Dixon
Katie Byrne
Kris Holland of Mafic Stufios: www.maficstudios.com
Misho Yordanov
Pierre Demet
Sergio Botero: https://www.artstation.com/sboterod?fref=gc
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Luca de Rosa
Mark Warburton
Michael Gusevsky
Mitch Armstrong
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner
AJ Prasad,
"Staring Through"

Rare Intelligence (Narration Only)

We often discuss the notion of settling the galaxy but do we need to stop there? This episode will examine the additional difficulties with traveling between galaxies and ask just how far we might be able to journey even without faster than light travel.

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Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Graphics Team:
Edward Nardella
Jeremy Jozwik
Jarred Eagley
Justin Dixon
Jeremy Jozwik
Katie Byrne
Kris Holland
Luuk Warringa
Misho Yordanov
Murat Mamkegh
Nick Talmers Nieuwoudt
Pierre Demet
Sergio Botero
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Keith Blockus
Luca de Rosa
Mark Warburton
Michael Gusevsky
Mitch Armstrong
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner

Music
Markus Junnikkala, "Always tell me the odds"
Kai Engel, "Endless Story about Sun and Moon"
A.J. Prasad, "Cold Shadow"
Aerium, "Fifth Star of Aldebaran"
Sergey Cheremisinov, "Labyrinth"
Markus Junnikkala, "Memory of Earth
Brandow Liew, "Into the Storm"

Intergalactic Colonization

The Fermi Paradox asks why we don't see any alien civilizations with our SETI efforts. The Late Filters are common solution suggested, that intelligent species may often arise but either destroy themselves or unwilling or incapable of interstellar travel to reach new worlds and colonize the galaxy.

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Credits:
The Fermi Paradox Great Filters: Late Filters
Episode 213, Season 5 E47

Written by: 
Isaac Arthur

Editors:
Darius Said
Jerry Guern
Keith Blockus
Matthew Acker
Phonetic Failure
Victoria Kelly 

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics by:
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
LegionTech Studios https://hades9.com
Sergio Botero https://www.artstation.com/sboterod?fref=gc

Produced & Narrated by:
Isaac Arthur

Music:
Lombus, "Cosmic Soup" https://lombus.bandcamp.com
Markus Junnikkala, "A Memory of Earth" https://www.markusjunnikkala.com/
AJ Prasad, "Aether" https://www.youtube.com/watch?v=xA8-7qwaEPU
Lombus, "Hydrogen Sonata" https://lombus.bandcamp.com
AJ Prasad, "Staring Through" https://www.youtube.com/watch?v=xA8-7qwaEPU

The Fermi Paradox: Late Filters (Narration Only)

Dark Matter is both the most abundant and most mysterious substance in the Universe, what properties does it have and what technologies might we create to use it in the future?

Watch the Video Version: https://youtu.be/GHXG3xrIDLY
Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
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Credits:
Dark Matter Technologies
Science & Futurism with Isaac Arthur
Episode 277, February 11, 2021
Written, Produced & Narrated by Isaac Arthur

Editors:
Jerry Guern https://www.youtube.com/channel/UCnySNJ_gDOdRAdUXbIpxYQw

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
Ken York https://www.facebook.com/YDVisual/

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

Isaac Arthur

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