Why build floating cities above Jupiter and Saturn? Not for fusion fuel, but for something far more valuable: the staggering amounts of hydrogen, nitrogen, and raw material needed to build a spacefaring civilization. Get Nebula using my link for 50% off an annual...
If we could build a space elevator tomorrow, where should it go? Earth may be the obvious answer, but the Moon, Mars, and other worlds may be far easier. We compare the best candidates. Get Nebula using my link for 50% off an annual subscription:...
What’s the fastest object humanity has ever built—and how did we get it moving that fast? The answer involves a spacecraft, the Sun, and some seriously extreme physics. 🚀 Join this channel to get access to perks:...
Ion drives are slow, quiet, and astonishingly efficient. From asteroid freighters and Mars cargo ships to the infrastructure behind future starships, these patient engines may help build civilization across the Solar System. Get Nebula using my link for 50% off an...
For 72 seconds, the universe seemed to answer SETI. The Wow! Signal was strong, narrowband, and strangely convincing... but it never came back. So what actually happened in 1977? Get Nebula using my link for 50% off an annual subscription:...
Could an alien civilization 100 light-years away tell Earth is inhabited? We explore what our atmosphere, radio signals, city lights, and technology might reveal across interstellar space. 🚀 Join this channel to get access to perks:...
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 life thrive without sunlight? Explore dark biospheres on rogue planets, icy moons, and buried oceans, where chemistry, tidal heating, and geothermal energy may sustain alien ecosystems in eternal night. Get Nebula using my link for 50% off an annual...
What really happens when you fall into a black hole? We explore event horizons, spaghettification, what you’d see inside, possible gateways, and why future civilizations might deliberately build around these cosmic engines. Get Nebula using my link for 50% off an...
From company towns in orbit to corporate empires among the stars, could megacorporations build the space frontier... or end up owning the air, the docks, and the only ride home? Get Nebula using my link for 50% off an annual subscription:...
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:...
Build a world small enough to circle in a day—or vast enough to house a galaxy. This grand tour explores the strangest space habitats possible under known physics. Any comments, corrections, or thoughts on the video? email Isaac.Arthur.Utube@gmail.com 🛒 SFIA...