Science & Futurism With Isaac Arthur

Could life on Earth have arrived from space? Explore panspermia, alien comets, and how life might spread across the galaxy.Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthurWatch my exclusive video Lazarus Protocols: https://nebula.tv/videos/isaacarthur-lazarus-protocols-reviving-civilizations-after-extinctionCheck out Day Pass: https://nebula.tv/daypass?ref=isaacarthur