Natalya Bailey: Rocket Engines and Electric Spacecraft Propulsion | Lex Fridman Podcast #157

Natalya Bailey is a rocket propulsion engineer from MIT and now CTO of Accion Systems. Please support this podcast by checking out our sponsors: - Munk Pack: https://munkpack.com and use code LEX to get 20% off - Four Sigmatic: https://foursigmatic.com/lex and use code LexPod to get up to 60% off - Blinkist: https://blinkist.com/lex and use code LEX to get 25% off premium - Sun Basket: https://sunbasket.com/lex and use code LEX to get $35 off EPISODE LINKS: Natalya's Twitter: https://twitter.com/natalya926 Accion Systems: https://accion-systems.com/ PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ Full episodes playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 Clips playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41 OUTLINE: 0:00 - Introduction 1:46 - Intelligent life in the universe 5:47 - Life in our solar system 7:52 - Humans on Mars 11:26 - Robots vs human in space exploration 12:20 - AI in space 16:25 - How rocket engines work 21:42 - How ion engines work 26:05 - How colloid engines work 35:03 - Material science 37:52 - Nuclear powered rocket engines 42:51 - Electric propulsion out in space 46:18 - Satellites 51:12 - Photo of Earth from the Moon 52:50 - Humans on Mars 55:12 - Propulsion without fuel 1:03:07 - How to build a rocket company 1:10:05 - SpaceX and commercial spaceflight 1:14:38 - Advice to startup founders 1:21:13 - Book recommendations 1:29:31 - Meaning of life CONNECT: - Subscribe to this YouTube channel - Twitter: https://twitter.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/LexFridmanPage - Instagram: https://www.instagram.com/lexfridman - Medium: https://medium.com/@lexfridman - Support on Patreon: https://www.patreon.com/lexfridman