If you enjoy the idea of propelling space ships using nuclear explosions, look up nuclear salt-water rockets (NSWRs, or Zubrin Drives). The idea is to dump pipe

If you enjoy the idea of propelling space ships using nuclear explosions, look up nuclear salt-water rockets (NSWRs, or Zubrin Drives). The idea is to dump pipes full of sub-critical amounts of radioactive salts out engine, combining outside the ship in a continuous nuclear explosion.