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by dhosek 2155 days ago
The Sabatier reaction relies on carbon dioxide. For the concept of using it to generate rocket fuel, there's a reliance on atmospheric CO₂ which is viable on Mars but not the Moon (which is why the section in the Wikipedia article is called “Manufacturing propellant on Mars”). And the Lunar Gateway is irrelevant to what I'm arguing, which is that there's not really any reason to settle off-planet.