The initial space economy will be built on a foundation of water. It’s abundant in the inner solar system, can be used directly as prop for low thrust engines, can be split into H2 and O2 for high thrust engines, is a great radiation shielding material and is essential for life. https://t.co/dsaWzPsYQR
— George Sowers (@george_sowers) April 7, 2019
via Twitter https://twitter.com/george_sowers
April 07, 2019 at 09:54PM
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