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![]() Date: 2010-01-04 09:51:56Science Quasar Big Bang Arno Allan Penzias Cosmic microwave background radiation Ralph Asher Alpher Galaxy Robert H. Dicke Observable universe Physics Astronomy Physical cosmology | Source URL: cosmictimes.gsfc.nasa.govDownload Document from Source WebsiteFile Size: 771,50 KBShare Document on Facebook |