What if the end of everything came not from cosmic fate, but from us? This episode examines the physics, probability, and peril of experiments that could, in theory, unravel the universe.

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Could We Accidentally Destroy the Universe?
Written, Produced & Narrated by: Isaac Arthur
Editors: Lukas Konecny
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Chapters
0:00 Intro
2:38 Vacuum Decay (False Vacuum Collapse)
9:59 Strange Matter Conversion
13:09 Gray Goo Scenario (Nanotechnology Out of Control)
16:05 Runaway Energy Reaction
19:06 Altering the Constants of Nature
20:49 Brane Collision (M-Theory Catastrophe)
22:27 Time Travel or Causality Paradox
23:55 Nebula
25:20 Simulation Shutdown
27:21 Big Rip or Cosmological Instability
28:35 Baby Universe Creation or Collapse
29:51 Why It Hasn’t Happened Yet (Anthropic Principle & More)
31:49 Channel Updates

Could We Accidentally Destroy the Universe?

Could We Accidentally Destroy the Universe? (Narration Only)

Feudalism once ruled Earth—could it rule the cosmos too? We dive into the strange but plausible world of space nobles, orbital dukes, and knights of the vacuum clad in power armor or piloting mecha.

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Credits:
Feudal Futures - Knights & Nobles in the Space Age
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Feudal Futures - Knights & Nobles in the Space Age (Narration Only)

NASA’s Perseverance rover may have found the best hint yet of Martian life — strange minerals in Jezero Crater that could be microbial fingerprints… or just clever geology.

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Credits:
Life on Mars: Perseverance’s Sapphire Canyon Discovery
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Chris Zabriskie

Life on Mars? Perseverance’s Sapphire Canyon Discovery

Life on Mars? Perseverance’s Sapphire Canyon Discovery (Narration Only)

3I/ATLAS is only the third interstellar object we’ve ever seen — but could it really be an alien artifact, or just another comet with unusual traits?

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Credits:
Is 3I/ATLAS an Alien Artifact?
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images 
Music Courtesy of Chris Zabriskie, Stellardrone

Is 3I/ATLAS an Alien Artifact?

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? (Narration Only)

Gravity has always shackled industry, but orbit frees us to build in ways Earth never allowed. This episode explores the rise of orbital foundries and the industries they unlock.

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Credits:
Orbital Foundries & Zero-G Manufacturing: Building in Space
Written, Produced & Narrated by: Isaac Arthur
Graphics: Jeremy Jozwik, Ken York, Udo Schroeter
Select imagery/video supplied by Getty Images 
Music Courtesy of Aerium, Stellardrone, Chris Zabriskie, and Epidemic Sound http://epidemicsound.com/creator

Orbital Foundries & Zero-G Manufacturing - Building in Space

The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.

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Credits:
Exploring The Multiverse
Originally aired as Episode 462b; September 1, 2024 
Produced, Written & Narrated by: Isaac Arthur
Editors: Thomas  Owens
Select imagery/video supplied by Getty Images
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."

Exploring The Multiverse

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?