TWiS 21: Alien Megastructures - Isaac Arthur and Alien Megastructures!

Isaac Arthur joins Rod Pyle to discuss alien megastructures in detail. If an alien civilization is sufficiently advanced, physicist and visionary futurist Freeman Dyson theorized they might build a livable structure that would be large enough to encompass their own star. Called a Dyson Sphere, the idea was popularized in episodes of Star Trek. Credit: Adam Burn https://www.artstation.com/adamburnart Host: Rod Pyle Guest: Isaac Arthur Download or subscribe to this show at https://twit.tv/shows/this-week-in-space. Get episodes ad-free with Club TWiT at https://twit.tv/clubtwit