Latest Videos

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...

What if fusion power never becomes practical? Humanity still has solar, fission, storage, beamed power, and enough known physics to build a spacefaring future. Get Nebula using my link for 50% off an annual subscription:...

Could you build a relativistic bullet? In theory, yes. In practice, the acceleration, power demand, and atmospheric effects are so absurd that your “bullet” becomes exotic gravel long before it becomes a useful weapon. A one-kilogram slug at 10%...

Where should humanity build its first Moon base: Shackleton Crater, lava tubes, lunar maria, or the far side? The Moon’s future may be a network, not one base. Get Nebula using my link for 50% off an annual subscription:...

Are habitable planets rare cosmic jewels, or scattered across the galaxy by the billions? We explore what “habitable” really means, from Earthlike worlds to planets we might someday transform. 🚀 Join this channel to get access to perks:...

Antimatter propulsion could be the fastest engine ever built. We explore how antimatter rockets work, their extreme energy density, and whether they could power humanity’s first true interstellar spacecraft. Get Nebula using my link for 50% off an...

Before NASA, we had a plan for a rotating space station. The Von Braun Wheel could be humanity’s first step toward artificial gravity, orbital habitats, and permanent life beyond Earth. Get Nebula using my link for 50% off an annual subscription:...