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Yes, some do. Blue Origin's BE-4 engine will run on methane, SpaceX' Raptor engine does as well, Falcon 9s are using refined kerosine instead (i.e. 'gas'). The
by _Microft 7y ago
Yes, some do. Blue Origin's BE-4 engine will run on methane, SpaceX' Raptor engine does as well, Falcon 9s are using refined kerosine instead (i.e. 'gas'). The total amount emitted is negligible compared to aviation or shipping though.