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.

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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

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

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.

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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?

After Mars - 8 Candidates For Where Humanity Should Go Next (Narration Only)

After Mars - 8 Candidates For Where Humanity Should Go Next

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.

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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

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

Could the origins of life on Earth trace back to a natural nuclear reactor? Long before humanity split the atom, nature itself may have done it first. In this episode, we explore the astonishing possibility that self-sustaining fission reactions—like the Oklo natural reactor in Gabon—once powered the chemical engines of creation. From radioactive geysers and mineral-rich pools to the first self-replicating molecules, we’ll examine how nuclear energy might have provided the spark that turned chemistry into biology. Along the way, we’ll connect this mystery to the Fermi Paradox, asking whether such rare, radioactive beginnings might explain why intelligent life seems so scarce in the universe. Join us for a journey that blends cosmic mystery, geochemistry, and the science of life’s origins.


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Credits:
The Fermi Paradox - Did a Natural Nuclear Reactor Spark All Life?
Written by Isaac Arthur & Philip Kramer, PhD
Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Chapters
0:00 Intro
3:39 The Fermi Paradox and the Great Filter
6:41 The Rare Earth Hypothesis & LUCA
11:42 Natural Nuclear Reactors – Earth’s First Fission Furnace
16:00 The Nuclear Geyser Hypothesis
21:27 Nebula
23:02 Implications for Alien Life
29:39 Fictional Exploration


The Fermi Paradox - Did a Natural Nuclear Reactor Spark All Life?

The future of computing might be off-world. Learn how orbital data centers could power AI, solar energy, and a thriving space industry.

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Any comments, corrections, or thoughts on the video? email Isaac.Arthur.Utube@gmail.com
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Credits:
Why Data Centers in Space Could Launch a New Space Economy?
Written, Produced & Narrated by: Isaac Arthur
Graphics:  Mafic Studios & Sergio Botero
Select imagery/video supplied by Getty Images 

Why Data Centers in Space Could Launch a New Space Economy?

Why Data Centers in Space Could Launch a New Space Economy? (Narration Only)

From safety protocols to philosophy, AI alignment asks a hard question: can we build artificial intelligence that truly serves humanity?
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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Join Nebula: https://go.nebula.tv/isaacarthur
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Credits:
AI Alignment - Can We Make AI Safe?
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

AI Alignment - Can We Make AI Safe? (Narration Only)

AI Alignment - Can We Make AI Safe?

Colonies won’t always last forever—sometimes planets revert, habitats decay, and entire worlds are left in ruins. Join us as we examine the life cycle of abandoned space settlements.

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.

Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store! https://isaac-arthur-shop.fourthwall.com/

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Credits:
Abandoned Space Colonies - How Worlds Can Unterraform Themselves
Written, Produced & Narrated by: Isaac ArthurSelect imagery/video supplied by Getty Images 
Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

Chapters
0:00 Intro
4:13 Why Colonies Fail
9:31 Ecological Collapse in Non-Earth Environments
12:39 Case Study – Kaluga-4, Oxygen Depletion
14:34 Unterraforming – How a World Reverts or Mutates
16:45 Abandonment Timelines
19:08 Case Study – Proxima B
22:00 Nebula 
Restoration & Resettlement
23:43 Case Study – Valhalla
25:22 System-Level Context
29:05 Long-Term Patterns in a Galactic Civilization


Abandoned Space Colonies - How Worlds Can Unterraform Themselves (Narration Only)

This episode continues our team up with Fraser Cain to look at Colonizing the Solar System, we move from the inner solar system to the Asteroid Belt and beyond, all the way out to the Oort Cloud.

Video Version here: https://youtu.be/0W7IRBeDkj4
Part 1: The Inner Solar System, can be watched here:
https://www.youtube.com/watch?v=ALBMdY9-SZs

Article: "COULD WE TERRAFORM JUPITER?"
http://www.universetoday.com/121691/could-we-terraform-jupiter/

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

Music by: Dexter Britain “Seeing the Future”
 Kai Engel “Endless Story about Sun and Moon” 
Koalips “Kvazar” 
Frank Dorittke “Morninglight”
Chris Zabriskie “Mario Bava sleeps in a little later than he expected to”
Brandow Liew “Into the Storm”

Colonizing The Outer Solar System

Isaac Arthur