Vasimr is still an ejection of mass. It is a way to to greatly accelerate the mass. But it still requires loading up the ship with mass.
yes I know - the question I was trying to answer was whether there is a way to generate power from nuclear energy without H2O. There is.
Also - a better idea is the VASIMIR engine. It is an actual reality. It’ll soon be tested on the ISS.
Vasimr is still an ejection of mass. It is a way to to greatly accelerate the mass. But it still requires loading up the ship with mass.