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Definition of microwave background in English: microwave backgroundnoun Astronomy A weak uniform microwave radiation which is detectable in nearly every direction of the sky. It is believed to be evidence of the Big Bang. Example sentencesExamples - Because of its near-perfect isotropy on the sky, the cosmic microwave background provides some evidence in favour of the Cosmological Principle.
- Black holes, the cosmic microwave background, pulsars, neutron stars, gravitational lenses, gravity waves - these are just a few of the phenomena that would make no sense without general relativity.
- The experimental detection of the cosmic microwave background was one of the great triumphs of the Big Bang theory.
- In the past half century radio astronomers discovered remarkable things, including pulsars, quasars, molecules in space, and the cosmic microwave background, the first evidence in support of the big bang itself.
- By combining the galaxy map with the newest images of the cosmic microwave background, the relic radiation left over from the Big Bang, astronomers say they have also confirmed the existence of something even stranger.
Definition of microwave background in US English: microwave backgroundnoun Astronomy A weak uniform microwave radiation which is detectable in nearly every direction of the sky. It is believed to be evidence of the Big Bang. Example sentencesExamples - Black holes, the cosmic microwave background, pulsars, neutron stars, gravitational lenses, gravity waves - these are just a few of the phenomena that would make no sense without general relativity.
- By combining the galaxy map with the newest images of the cosmic microwave background, the relic radiation left over from the Big Bang, astronomers say they have also confirmed the existence of something even stranger.
- The experimental detection of the cosmic microwave background was one of the great triumphs of the Big Bang theory.
- Because of its near-perfect isotropy on the sky, the cosmic microwave background provides some evidence in favour of the Cosmological Principle.
- In the past half century radio astronomers discovered remarkable things, including pulsars, quasars, molecules in space, and the cosmic microwave background, the first evidence in support of the big bang itself.
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