What if aliens aren’t peaceful explorers — but rational survivors? In this short, we explore three chilling assumptions from The Killing Star: survival comes first, wimps don’t become top dogs, and advanced civilizations assume others think the same way. Put together,...
How close are we to vacationing in orbit? Space hotels, real costs, and the tipping point where space tourism becomes normal. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video The Future of...
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...
Could we build wormholes and travel the galaxy? Exploring stable wormholes, spacetime shortcuts, and the future of interstellar civilization. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video The...
How and why would humans live far from stars? Exploring deep-space habitats, artificial suns, and megastructures. Join FlexiSpot's Valentine's Specials with up to 65% off! Shop now and use my code "YTE730" to save an extra $30 on the E7 Standing Desk. FlexiSpot E7...
What if a comet hit Earth? Faster than asteroids and packed with primordial chemistry, a single impact could cause mass extinction—or help seed life itself. 🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join 🛒...
Must humanity unite to colonize space, or can rivalry and diversity be our greatest strengths among the stars? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Check out Mad Kings: https://nebula.tv/madkings?ref=isaacarthur...
Why some alien civilizations may never reach space 🚀 Without enough oxygen, fire fails—and without fire, industry, rockets, and stars remain forever out of reach. 🚀 Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join...
Asteroid mines become mobile city-states. Explore how hollowed asteroids grow into sovereign habitats, economies, and civilizations. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video...
Advanced civilizations may hide in cold, dark, quiet space—not from fear, but efficiency. Physics favors silence, low temperatures, and stability over cosmic fireworks. 🚀 Join this channel to get access to perks:...
What if alien civilizations exist—but chose to hide? Exploring shadow empires, cosmic silence, and the limits of secrecy in space. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Check out Mad Kings:...
How big could space habitats really get? From O’Neill cylinders to Ringworlds and Topopolises, we explore the true limits of megastructure scale. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video...