Ex-SpaceX Engineer: His WATER Engine Will Conquer Space Faster Than You Think | ROP #47 episode artwork

EPISODE · Aug 20, 2025 · 44 MIN

Ex-SpaceX Engineer: His WATER Engine Will Conquer Space Faster Than You Think | ROP #47

from Rational Optimist Podcast

After working on SpaceX's Starship and America's return to the Moon, Halen Mattison left to solve a key problem for a multi-planetary future: building a gas station on Mars. His breakthrough is a propulsion system that uses electrolysis to split water into hydrogen and oxygen—one of the most efficient chemical rocket fuels known. In this episode, we explore how this technology offers a safer, more powerful alternative to legacy fuels, unlocks the lunar economy by using water from the Moon, and will help humanity explore the solar system faster than you think.

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Ex-SpaceX Engineer: His WATER Engine Will Conquer Space Faster Than You Think | ROP #47

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