Could a planet grow bigger than Jupiter? Only slightly. Add more mass, and gravity starts crushing it inward instead, leading toward brown dwarfs and eventually stars. 🚀 Join this channel to get access to perks:...
What happens when a colony ship’s children inherit a mission they never chose? We explore the values, conflicts, and founding myths that shape civilizations born between Earth and the stars. Get Nebula using my link for 50% off an annual subscription:...
Aliens may not be broadcasting to the galaxy at all. Powerful lasers could carry messages across interstellar distances in razor-thin beams, briefly outshining a star, yet miss Earth by billions of miles. 🚀 Join this channel to get access to perks:...
Could life survive in oceans that eat glass and treat water as poison? Explore fluorine-rich biology, hydrogen fluoride seas, and alien creatures whose metabolisms resemble carefully contained rocket engines. Get Nebula using my link for 50% off an annual...
Will the universe fade, rip apart, collapse, reset, or simply stop making sense? A tour of the strangest possible endings of reality. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Check out Joe's Scott's Oldest and...
The universe has stars that don’t just shine, they threaten worlds. Explore neutron stars, magnetars, pulsars, hypernovae, vampire stars, and gamma-ray bursts. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch the SFIA...
Could digital immortality really save you, or just create a convincing copy? We explore mind uploading, backups, identity, and whether survival means continuity… or redundancy. Get Nebula using my link for 50% off an annual subscription:...
Artificial intelligence may be civilization’s greatest tool… or its last. Could AI explain why the galaxy seems silent, or does it make the Fermi Paradox even harder? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch...
First contact is easy. Living together isn’t. How would humanity merge with alien civilizations in a shared galaxy of trade, politics, and uneasy peace? Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive...
Earth leaks radio signals constantly, but could aliens actually hear us from another star? The answer matters for SETI, the Fermi Paradox, and the search for civilizations like our own. 🚀 Join this channel to get access to perks:...
Are aliens watching us? The Zoo Hypothesis suggests advanced civilizations may be hiding, enforcing a galactic quarantine, or masking reality itself. Explore the Fermi Paradox, Dyson dilemma, and the unsettling possibility we are not alone—but observed. Get Nebula...
Explore SETI’s history and modern methods—from radio and laser searches to Dyson spheres and technosignatures—and how we might detect alien civilizations across the galaxy. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur...