Specific impulse measures how effectively a rocket engine creates thrust from the mass it throws out the back, whether by chemical or any other means. The higher the specific impulse of a rocket ...

In order to significantly increase the effectiveness, performance and specific impulse of future rocket engines, high combustion chamber pressures are required above all. If the combustion chamber ...

Injecting helium into rocket engines significantly increases thrust while reducing the temperature of exhaust gases. This technique, tested through simulation, shows a 5.77% improvement in specific ...

Nuclear propulsion would expel propellant from the engine's nozzle very quickly ... systems have roughly twice the specific impulse of chemical rockets, which means they could cut the travel ...