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cosmic microwave background

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cosmic microwave background

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Also known as CMBR, MBR, CMB, relic radiation, microwave background radiation, cosmic microwave background radiation, cosmic background radiation

electromagnetic radiation as a remnant from an early stage of the universe in Big Bang cosmology

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The cosmic microwave background is leftover radiation from the very early universe, shortly after the Big Bang occurred. Scientists study it because it provides direct evidence about the universe's origin and earliest conditions.

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Wikidata facts

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WMAP 2012.png
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Commons category
Cosmic microwave background
time of discovery or invention
1964-05-20
temperature
2.72548
title
fond diffus cosmologique
redshift
1089.57
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Temperature map of the cosmic microwave background measured by the Planck spacecraft

Expansion · Future

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