Nuclear power and propulsion for missions to Mars and the outer solar system

Physics

Scientific paper

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Grand Tours, Manned Mars Missions, Nuclear Propulsion, Spacecraft Power Supplies, Spacecraft Propulsion, Chemical Propulsion, Electric Propulsion, Solar System, Space Exploration

Scientific paper

The use of nuclear technologies for a variety of space exploration missions is examined, with particular attention given to cryogenic chemical propulsion, nuclear thermal rocket (NTR) engines in sizes between 10 and 75 klbf, nuclear electric power and propulsion systems (NEP), and different types of hybrid and dual mode NTR/EP systems. The discussion covers Mars orbiter missions, small vs large NTRs for piloted Mars missions, asteroid exploration missions, Saturn orbiter missions, Uranus and Neptune orbiter missions, Pluto orbiter missions, and nonpropulsive benefits of nuclear power. It is shown that the use of small (10-15 klbf) NTR can enable or strongly enhance a large range of unmanned exploration missions; large and small NTRs are of equal value for piloted Mars missions.

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