The purpose of the looking at the future...is to disturb the present!

Gaston Berger (1896-1960), francuski futurolog

This Startup Thinks It Can Make Rocket Fuel From Water. Stop Laughing

General Galactic, cofounded by a former SpaceX engineer, plans to test its water-based propellant this fall. If successful, it could help usher in a new era of space travel. That's a big “if.”
Link :
https://www.wired.com/story/general-galactic-water-rocket-fuel-test/