Hi all, Does anyone know where I can find the formula for the relavistic rocket equation? That is, I want to know the mass of fuel required to accelerate a rocket from 0 to β, for a given acceleration A, assuming the rocket (with no fuel) has a mass of M. All of this would be in the frame of the Earth. I know there are several types of proposed Sci-Fi fuels but I think fusion is the most promising. A reliable webpage would be great. Thanks!