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Puff of power props space probe propellant
An ion engine could fuel outer space probes with tiny thrust but long life. Boeing researchers Len Smith and Daril Hahn note steady, year long propulsion from charged mercury or cesium atoms, aided by a compact nuclear reactor for electricity and a practical projection chamber.
MENTIONED IN THIS ARTICLE
Eldon Barrett
Seattle
Wash
UPI
Jupiter
Len Smith
Boeing Co
Smith
Daril Hahn
Hahn and Smith