Modern spacecraft use a majority of their fuel supplies just to break away from the Earth's gravity and actually get into space. But a new NASA proposal hopes to cut that fuel requirement in half by employing solar-powered, ion-thrusting "Space Tugs" to ferry ships and satellites into Geosynchronous orbit.
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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/pnfL5pe19Ck/space-tugboats-are-exactly-what-they-sound-like
DIODES INORATED DIEBOLD DELL
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