A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than ...
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NASA tests new, super powerful engine
NASA just nudged its Mars ambitions forward with a lab test of a new ion engine that vastly outmuscles anything it's flown ...
CLEVELAND — A small robotic surveyor arrives to explore a near-Earth asteroid. Another robotic spacecraft is returning to Earth with a pristine comet surface sample. Meanwhile, a robotic explorer is ...
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