Zubrin also had a design ... a group of interstellar emigrants selecting a small ice asteroid with a mass of 30,000 tonnes and using it as propellant (together with 7,500 tonnes of uranium obtained ...

“Hosted at the Alma Propulsion Laboratory, on the Alma Mater Campus in Forlì, the WET project aims to exploit water as a propellant for space thrusters , transforming it into plasma and using ...