Could a real alien invasion ever work? We explore the science, strategy, and staggering costs of conquering a planet—and why total destruction is often the worst plan for galactic warfare. Join this channel to get access to perks:...
Before we plant flags on alien worlds, we’ll build homes that can cross the void. This episode explores how humanity’s first interstellar colony might be born inside the ship itself. Checkout Scav: https://go.nebula.tv/scav?ref=isaacarthur Watch my exclusive video...
From nuclear nightmares to reality-breaking weapons, we examine how science and fiction imagine the end of everything. What happens when weapons don’t just destroy worlds but unmake reality itself? Explore the science of apocalypse. Checkout Scav:...
Go to https://PIAVPN.com/IsaacArthur to get 83% off from our sponsor Private Internet Access with 4 months free! Forget little green men — the galaxy’s most likely aliens may be hives and swarms. From biology to starships, insectoid life could shape civilizations...
From supernova graveyards and magnetar death fields to alien quarantines and simulation boundaries, we map out the “haunted houses” of the Milky Way and ask: are we living in one? Checkout Rifftrax https://go.nebula.tv/rifftrax?ref=isaacarthur Watch my exclusive video...
Meet the caretaker AIs: guardians of planets, habitats, and civilizations. What happens when machines become the spirit and soul of the worlds they protect? Checkout Rifftrax https://go.nebula.tv/rifftrax?ref=isaacarthur Watch my exclusive video The Fermi Paradox -...
Every galaxy thinks it’s the center of the cosmos—but in our expanding Universe, everywhere is the middle... or is it? We explore relativity, cosmic geometry, and what “center” really means. Join this channel to get access to perks:...
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:...
The future of computing might be off-world. Learn how orbital data centers could power AI, solar energy, and a thriving space industry. Grab one of our new SFIA mugs and make your morning coffee a little more futuristic — available now on our Fourthwall store!...
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...
Semiconductors built in orbit are already outperforming Earth-made chips. Space Forge and United Semiconductors just proved zero-gravity manufacturing could change computing forever. Join this channel to get access to perks:...
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. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur...