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

ℹ️ EPISODE INFO

Released

February 1, 2021

Duration

1h 34m

Channel

Lex Fridman Podcast

Watch on YouTube

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📝 EPISODE DESCRIPTION

Natalya Bailey is a rocket propulsion engineer from MIT and now CTO of Accion Systems. Please support this podcast by checking out our sponsors:

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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:

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🎤 SPEAKERS

• Lex Fridman

  host

• Natalya Bailey

  guest

🧾 EPISODE SUMMARY

In this episode of Lex Fridman Podcast, featuring Lex Fridman and Natalya Bailey, Natalya Bailey: Rocket Engines and Electric Spacecraft Propulsion | Lex Fridman Podcast #157 explores rocket Scientist Natalya Bailey Redefines Space Travel With Electric Propulsion Lex Fridman and rocket propulsion engineer Natalya Bailey explore the engineering and philosophy of moving humans and robots through space, focusing on electric and ion-based propulsion systems. They contrast chemical rockets used for launch with efficient in-space electric engines such as ion thrusters and Bailey’s own colloid electrospray technology. The discussion widens to include extraterrestrial life, colonizing Mars, nuclear power in space, and long-term visions for interstellar travel. Bailey also reflects on startups, culture, and the deeper meaning of scientific work as building humanity’s collective knowledge.

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