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A nuclear fission fragment rocket engine (FFRE) that is exponentially more propellent efficient than rocket engines currently used to power today’s space vehicles and could eventually achieve very high specific impulse (>100,000 sec) at high power density (>kW/kg). A new NASA NIAC (NASA Innovative Advanced Concepts) project is creating a buildable near term design for a nuclear fission fragment rocket. It would enable manned mission to Mars with 90 day travel times.
Home » Energy » Nearterm 10X Aerogel Fission Fragment Rocket Will Lead to Interstellar Capability
A mature and advanced fission fragment rocket using hundreds of tons of fissile fuel and a 200 gigawatt reactor could have a design that could reach about 10% of light speed.
