Interstellar civilizations home to hundreds of peacefully cooperating alien species are a common theme in science fiction, but are such civilizations likely or would we instead see conquest and xenocide?

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Credits:
Alien Civilizations: Multi-Species Empires
Science & Futurism with Isaac Arthur
Episode 337a, April 10 2022
Written, Produced & Narrated by Isaac Arthur

Editors:
David McFarlane

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

Music by:
Martin Rezny, "Lifelight"
Denny Schneidemesser, "Bridge Ambience"
Stellardrone, "A Moment of Stillness"
Aerium, "Fifth Star of Aldebaran"
Miguel Johnson, "Strange New World"

Multi-Species Empires (Narration Only)

Humanity has often preferred to move its communities, and in the future we might do that by moving our entire cities, by air, sea, or land.
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Credits:
Mobile Cities
Science & Futurism with Isaac Arthur
Episode 403, July 13, 2023
Produced & Narrated by Isaac Arthur

Written by:
Briana Brownell
Isaac Arthur

Editors:
Briana Brownell
David McFarlane

Mobiles Cities (Narration Only)

Many millennia from now we may have journeyed out to colonize billions and billions of planets in our galaxy, but every journey has to start somewhere.

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Credits: Near Term Space Colonization 
Episode 410, August 31, 2023
Produced & Narrated by: Isaac Arthur

Written by:
Isaac Arthur
Jason Snyder

Editors:
David McFarlane

Music Courtesy of: 
Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant" "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth" "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."
Miguel Johsnon, "So Many Stars"

Near Term Space Colonization

They say space is the future, out among the countless billions and billions of new worlds in our galaxy, but a journey needs a path or road, so what sort of roads will we build in space?
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Credits:  Interplanetary Infrastructure
Episode 412, September 14, 2023
Produced & Narrated by: Isaac Arthur

Written by:
Isaac Arthur

Editors:
Andy Nelson
David McFarlane
Merv Johnson
Phil Swan

Interplanetary Infrastructure (Narration Only)

To travel between the stars requires vast amounts of fuel and energy, but as it turns out, the ocean of night in deep space is full of fuel, if you can collect it along the way.

The Fishback ramjet revisited: https://www.sciencedirect.com/science/article/pii/S0094576521005804

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Credits:  Bussard Ramjet Starship Drive
Episode 411b, September 10, 2023
Written, Produced & Narrated by: Isaac Arthur

Bussard Ramjet Starship Drive (Narration Only)

Science fiction has popularized asteroid mining and cities in the sky, but could the future of mining be in cloud cities hanging far above distant worlds?
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Chapters
0:00 Intro
02:08 Venus-like worlds
08:48 Titan Moons
12:38 Ice Giants / Hycean [buoyancy viable]
17:23 Gas Giants – fusion candle and others
22:02 Starlifting
26:16 Stellar Remnants
27:15 Black Hole Series

Credits: Atmospheric Mining
Episode 413, September 21, 2023
Written, Produced & Narrated by: Isaac Arthur

Editors:
David McFarlane
Konstantin Sokerin

Music Courtesy of: 
Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant" "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth" "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."
Miguel Johsnon, "So Many Stars"

Atmospheric Mining

Throughout history it has been common for distant colonies to break away from their homeland. In a future where colonies are entire planets and light years from home, shall history repeat itself?
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Credits: Rebel Space Colonies
Episode 419; November 2, 2023
 
Written, Produced & Narrated by: Isaac Arthur

Music Courtesy of
Epidemic Sound http://epidemicsound.com/creator
Miguel Johnson, "So Many Stars"
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"
Taras Harkavyi, "Alpha and..."

Rebel Space Colonies

In the past, we had entire civilizations devoted to agriculture, but in the future, we might have entire planets devoted to it.

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Credits: Agriworlds 
Episode 423; November 30, 2023
Written, Produced & Narrated by:
Isaac Arthur

Music Courtesy of: 
Epidemic Sound  http://epidemicsound.com/creator
Sergey Cheremisinov, "Labyrinth"
Taras Harkavyi, "Alpha and..."

Agriworlds (Narration Only)

In science fiction we often see immense starships attacking planets, crushing or besieging them, but in our own future we may deploy powerful orbital fortresses to defend our world.

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Credits:
Orbital Defense Platforms
Episode 423b; December 3, 2023
Produced, Written & Narrated by: Isaac Arthur

Orbital Defense Platforms (Narration Only)

In the grandeur of the universe, the tapestry of life may be woven from stranger threads than we ever dared to dream, and spun from materials far different to our own.
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Credits:
Silicon-Based Lifeforms 
Episode 426; December 21, 2023
Produced, Written & Narrated by: Isaac Arthur

Silicon-Based Lifeforms (Narration Only)

Reaching new worlds is a difficult task, but transplanting ecosystem and civilizations to them may be even harder.

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Credits:
The Fermi Paradox: Pancosmorio Theory
Episode 428; January 4, 2024
Produced, Written & Narrated by: Isaac Arthur
Editor: Briana Brownell

Graphics:
Jeremy Jozwik
Ken York
Mafic Studios

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

Orbital Defense Platforms (Narration Only)

Isaac Arthur

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