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Date: 2011-08-03 21:38:03Discovery program Spacecraft propulsion Astrodynamics Gravity assist Cassini–Huygens NEAR Shoemaker Spaceflight Space technology Spacecraft | Educational Product National Aeronautics and Space Administration EducatorsAdd to Reading ListSource URL: greatballsoffireexhibit.orgDownload Document from Source WebsiteFile Size: 324,90 KBShare Document on Facebook |