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cosmic background radiation

   Also found in: Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
cosmic background radiation
n.
Faint microwave radiation that penetrates space throughout the universe, postulated to be a residual effect of the Big Bang.

cosmic background radiation
Weak radio-frequency radiation traveling through outer space with equal intensity in every direction. It is thought to be residual radiation from a period shortly following the big bang, when the universe was very hot. Also called microwave background.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.cosmic background radiation - (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin
cosmogeny, cosmogony, cosmology - the branch of astrophysics that studies the origin and evolution and structure of the universe
cosmic radiation - radiation coming from outside the solar system

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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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