“Or the new Russian new tech system which puts all of those to shame and should be flying at about 2030.”
The Russian effort is typical of their inferiority complex, in that they always have to build the “biggest” of whatever it is.
SpaceX will kill them (and the rest of the space industry) with the reusable booster technology used in both Falcon 9 and Falcon Heavy.
53 tons to LEO is plenty to build the modular orbit-only nuclear-powered interplanetary ships we ought to be building...
Russian effort is 150 tons or more. Used to have the link - think it is called the Fenix or similar - could be the overall project name.
Agree we need to build something like the original Project Orion ships once the steering problem is solved and we can find someone willing to design and build very small nukes - the last designer quit because of his fear that his creations would be used as weapons instead of ship power.