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cosmic background radiation |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.21 sec. |
cosmic background radiationElectromagnetic radiation, mostly in the microwave range, believed to be the highly redshifted residual effect (see redshift) of the explosion billions of years ago from which, according to the big-bang model, the universe was created. It was discovered by accident in 1964 by Robert W. Wilson and Arno Penzias; its presence supports the predictions of big-bang cosmology. |
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| First there was the Cosmic Background Explorer (COBE) satellite and its discovery of the long-sought variations in the cosmic background radiation. To best understand how our universe formed and has evolved, different approaches are being used, including measuring the cosmic background radiation, studying galaxy clusters, and understanding quasars (super massive black holes) and their relation to large-scale structure in the universe. First there was the Cosmic Background Explorer (COBE) satellite and its discovery of the long-sought variations in the cosmic background radiation. |
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cosmic background radiation
