Rocket engines that are chemical, nuclear thermal rocket solid core, and nuclear thermal rocket gas core perform missions with a series of discrete impulse burns. A 10-megawatt fusion rocket would therefore weigh about 11 tons (10 metric tons). From Terra orbit they do a Trans-Martian injection burn lasting a few minutes then coast for a few months. Magneto Inertial Fusion This is the best fusion-power rocket design to … Orion Nuclear Pulse is a rocket driven by detonating hundreds of nuclear bombs.

The UK company Applied Fusion Systems are currently filing a patent for a new nuclear fusion rocket engine, creating by turning a small fusion reactor into a rocket. See how a nuclear fusion-powered rocket might work. Don't miss the Medusa variant. If you can get past freaking out about the "bomb" part, it actually has many advantages. "It would probably be 1.5 meters [4.9 feet] in diameter and 4 to 8 meters [13 to 26 feet] long," Paluszek said. A British nuclear start-up company is developing a nuclear fusion rocket engine as a step towards revolutionising space travel.
Nuclear fusion rockets funded in part by NASA could one day lead to 30-day missions to Mars. The Fusion Driven Rocket: Nuclear Propulsion through Direct Conversion of Fusion Energy