As humanity expands into space, we’ll need new ways to grow food. Explore how orbital farms could sustain billions—on Earth, Mars, and beyond. Checkout Scav: https://go.nebula.tv/scav?ref=isaacarthur Watch my exclusive video Autonomous Space Industry:...
Ancient Machine Monitors: Alien Watchdogs, AI Custodians, and the Fermi Paradox
From Clarke’s Sentinel to deep-space defense systems, this episode dives into the idea of machine monitors—guardians of planets, civilizations, and secrets too ancient to name. Watch my exclusive video Antimatter Propulsion: Harnessing the Power of Annihilation -...
Life in 2525 AD (Episode 500 – Narrated by Isaac Arthur)
In the year 2525, humans, post-humans, and new species navigate a vast and vibrant future. Join us as we explore the lives, dreams, and struggles of a trillion-strong civilization. Watch my exclusive video Antimatter Propulsion: Harnessing the Power of Annihilation -...
Life in 2525 A.D. (Episode 500)
In the year 2525, humans, post-humans, and new species navigate a vast and vibrant future. Join us as we explore the lives, dreams, and struggles of a trillion-strong civilization. Watch my exclusive video Antimatter Propulsion: Harnessing the Power of Annihilation -...
Galactic Beacons: Signals Across Space And Time
It can be hard to hear a signal 100 miles away—so what does it take to build a beacon loud enough to be heard 100,000 light years away? In this episode, we explore galactic beacons: powerful transmissions that may teach, warn, or outlast the minds that made them....
Gravitic Spaceship Propulsion
To get started planning a career that works on one of the world’s most pressing problems, sign up now at https://80000hours.org/isaacarthur Gravity is a fascinating force, it’s what holds everything on our planet together, and it might one day help us travel to other...
The Medusa Spaceship Drive
To get started planning a career that works on one of the world’s most pressing problems, sign up now at https://80000hours.org/isaacarthur The Medusa Starship Drive offers us the chance to sail between the stars, propelled by nuclear bombs. Visit our Website:...
The Stanford Torus Space Habitat
Go to https://buyraycon.com/isaacarthur to get up to 30% off sitewide! Brought to you by Raycon. The Stanford Torus is a vast space habitat design intended to allow thousands to dwell safely and comfortably in space, but how do we build such a structure? Visit our...
Ultra-Relativistic Spaceships: Racing Towards the Speed of Light
Explore the science and implications behind ultra-relativistic spaceships capable of approaching the speed of light, pushing the limits of technology and physics. Watch my exclusive video Orbital Farms: https://nebula.tv/videos/isaacarthur-orbital-farms Get Nebula...
The Fermi Paradox: Gravity
Explore how gravity might explain the Fermi Paradox and the Great Silence of the cosmos. Could gravitational forces impact the rise of life and sustainability of civilizations, influencing why we haven't found intelligent life? Watch my exclusive video Orbital Farms:...
Harvesting Planets: Space Mining and the Future of Resource Extraction
Use code isaacarthur at the link below to get an exclusive 60% off an annual Incogni plan: https://incogni.com/isaacarthur We often imagine civilizations so immense they can create worlds and colonize galaxies, and yet to fuel those immense engines of creation, they...
Early Terraforming: The First Steps in Planetary Transformation
Terraforming an entire planet is a colossal undertaking that will take lifetimes to complete. So assuming you're that committed to seeing it through, how do you even start? Watch my exclusive video Orbital Farms: https://nebula.tv/videos/isaacarthur-orbital-farms Get...
