3 ms·

I’ll talk about it. Methalox engines will be solar powered within 5-10 years. Kerolox is dying off in that time frame.

• ncmncm 4y ago
  That is fine, as far as it goes. But it doesn't go very far. Injecting huge amounts of H, CO and H2O into the upper stratosphere and ozone layer will have important consequences, even if the launch cadence SpaceX wants does not happen. (Which it won't.) We might need regulation.