Actually there is fuel in space - water and sunlight.
You can split water into hydrogen and oxygen using electricity from sunlight.
In long term, most likely both Hydrolox and Methalox will be in use.
You can split water into hydrogen and oxygen using electricity from sunlight.
In long term, most likely both Hydrolox and Methalox will be in use.
Ceres also seems to have a lot of water: https://astronomy.com/news/2020/08/ceres-an-ocean-world-in-t...