Mar 6 1979
From The Space Library
NASA announced that it had assigned MSFC responsibility for developing a solar electric propulsion stage to be used first in a planned flyby of Halley’s Comet upon its return in 1985, and after that for a rendezvous with comet Tempel II. MSFC had been studying for several years the concept of a system using solar energy to provide electrical power for ion engines. Other uses for such a system would be high-energy planetary and Earth-orbiting missions. (NASA Release 79-31; MSFC Release 79-24)
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