In space, everything is a weapon. From orbits to infrastructure, here’s how the first real war between worlds might actually be fought. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Surviving a...
Fleet Unity: The Eridani Expedition – Interstellar Beachhead
Before Fleet Unity can colonize Eridani, someone must arrive first, build the brakes, and turn frozen moons into the machinery of interstellar arrival. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive...
Talking the Future: Science, Space, and Civilization | May Live Q&A
Join Isaac Arthur for a live discussion on the future of humanity and the technologies that will get us there! 🌌 This month, we are diving deep into your questions on space megastructures, interstellar travel, and the long-term trajectory of our civilization. 🔭 Bring...
Nomadic Aliens – Cultures That Wander the Galaxy
What if the oldest aliens in the galaxy are not empires, but nomads? We explore wandering fleets, deep-time survival, and civilizations without a homeworld. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my...
Would Interstellar Dust Destroy A Fast Spaceship?
Interstellar dust is a real threat to starships, but is it a dealbreaker? We look at speed, impact energy, and clever shielding. 🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join 🛒 SFIA Merchandise:...
Genetic Bottlenecks – How Few People Can Start a World? Or Restart One?
When disaster leaves only a handful, can a civilization restart? We explore genetic bottlenecks, colony failure, and the limits of survival. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video...
Magnetic Monopoles & Magmatter – The Strongest Material That Might Exist
Magnetic monopoles are hypothetical particles with a single magnetic charge — north without south. Predicted by grand unified theories, they may be incredibly massive and could bind together into “magmatter,” an ultra-dense material stronger than anything known in...
Talking the Future: Science, Space, and Civilization | April Live Q&A
Join Isaac Arthur for a live discussion on the future of humanity and the technologies that will get us there! 🌌 This month, we are diving deep into your questions on space megastructures, interstellar travel, and the long-term trajectory of our civilization. 🔭 Bring...
1 Million A.D.
What does humanity become in 1 Million A.D.? Galaxy-spanning civilizations, post-human minds, and a future where time, identity, and even Earth itself are transformed. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch...
Additive Manufacturing in Microgravity
The most expensive part of space travel isn’t the fuel. It’s the cargo. Additive manufacturing isn’t a sci-fi magic trick; it’s the key to building shipyards and telescopes at scales rockets were never meant to handle. We aren't just launching ships anymore; we're...
The Fermi Paradox: Human Uniqueness and Oddity
Why does the galaxy seem silent? Maybe aliens aren’t rare—maybe humans are. We explore the strange mix of traits that turned one clever primate into a technological civilization, and whether our oddities might be the real Great Filter. Get Nebula using my link for 50%...
How Long Would It Take To Colonize The Galaxy?
How long to colonize the Milky Way? Even at 10% light speed, humanity could spread across the galaxy in just a few million years—a cosmic blink. 🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join 🛒 SFIA...
