cosmic microwave background radiation

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cosmic microwave background radiation

n.
Microwave radiation that penetrates space throughout the universe, postulated to be residual electromagnetic radiation originally emitted by warm matter in the universe approximately 400,000 years after the Big Bang. Also called cosmic background radiation, cosmic microwave background, microwave background.
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Noun1.cosmic microwave 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
References in periodicals archive ?
Like polarized light (which vibrates in one direction and is produced by the scattering of visible light off the surface of the ocean, for example), the polarized "B-mode" microwaves the scientists discovered were produced when CMB radiation from the early universe scattered off electrons 380,000 years after the Big Bang, when the cosmos cooled enough to allow protons and electrons to combine into atoms.
In the new study, the team estimated the motion of each cluster with respect to the CMB radiation, which is believed to be "the ultimate reference" of movement on a cosmological scale, says Ebeling, a coauthor of the new papers.
Subsequent chapters describe scalar perturbations, the anisotropy spectrum of the CMB radiation, dilaton phenomenology, and elements of brane cosmology.
In the CMB radiation, they noticed a cold spot that was especially cold.