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Date: 2013-04-30 20:24:10Plasma physics Astronomy Light sources Sun Corona Solar flare SN 1987A Supernova Speed Space plasmas Physics Astrophysics | 8 Name ________________________________ Objects in space move. To figure out how fast they move, astronomers use man y different techniques depending on what they ar e investigating. In th is activity, you willAdd to Reading ListSource URL: www.nasa.govDownload Document from Source WebsiteFile Size: 213,82 KBShare Document on Facebook |