Robert Zubrin’s Nuclear Salt Water Rocket (NSWR) design is a rocket that uses known physics and engineering . There are versions that could reach 7-8% of light speed. The use of low grade uranium ...

The most probable torchship designs proposed are nuclear pulse propulsion (e.g., Project Orion) and nuclear salt water rockets (NSWR). These leverage high thrust and exhaust velocity to achieve >300 ...

This was observed during an examination of fission fragment tracks produced in Ilford photographic emulsions by a method which we have previously described 1. Similar observations have recently ...