Changes

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*[http://en.wikipedia.org/wiki/1976 1976]

*[https://en.wikipedia.org/wiki/1976 1976]

==Description==

==Description==

'''Cosmic background radiation''' is [[electromagnetic]] [[radiation]] from the [[sky]] with no discernible source. The origin of this radiation depends on the region of the [[spectrum]] that is [[observed]]. One component is the cosmic microwave background radiation. This component is [http://en.wikipedia.org/wiki/Redshifted redshifted] [http://en.wikipedia.org/wiki/Photon photons] that have freely streamed from an [[epoch]] when [[the Universe]] became transparent for the first time to [[radiation]]. Its [[discovery]] and detailed observations of its properties are considered one of the major confirmations of the [[Big Bang]]. The discovery (by [[chance]] in 1965) of the cosmic background radiation proves that the early universe was dominated by a radiation field, a field of extremely high [[temperature]] and [[pressure]].

'''Cosmic background radiation''' is [[electromagnetic]] [[radiation]] from the [[sky]] with no discernible source. The origin of this radiation depends on the region of the [[spectrum]] that is [[observed]]. One component is the cosmic microwave background radiation. This component is [https://en.wikipedia.org/wiki/Redshifted redshifted] [https://en.wikipedia.org/wiki/Photon photons] that have freely streamed from an [[epoch]] when [[the Universe]] became transparent for the first time to [[radiation]]. Its [[discovery]] and detailed observations of its properties are considered one of the major confirmations of the [[Big Bang]]. The discovery (by [[chance]] in 1965) of the cosmic background radiation proves that the early universe was dominated by a radiation field, a field of extremely high [[temperature]] and [[pressure]].

The [http://en.wikipedia.org/wiki/Sunyaev%E2%80%93Zel%27dovich_effect Sunyaev–Zel'dovich effect] shows the [[phenomena]] of radiant cosmic background radiation [[interacting]] with "electron" clouds [[distorting]] the spectrum of the radiation.

The [https://en.wikipedia.org/wiki/Sunyaev%E2%80%93Zel%27dovich_effect Sunyaev–Zel'dovich effect] shows the [[phenomena]] of radiant cosmic background radiation [[interacting]] with "electron" clouds [[distorting]] the spectrum of the radiation.

There is also background radiation in the [http://en.wikipedia.org/wiki/Infrared infrared], [[x-ray]]s, etc., with different causes, and they can sometimes be resolved into an individual source. See cosmic infrared background and X-ray background. See also [http://en.wikipedia.org/wiki/Cosmic_neutrino_background cosmic neutrino background] and [http://en.wikipedia.org/wiki/Extragalactic_background_light extragalactic background light].[http://en.wikipedia.org/wiki/Cosmic_background_radiation]

There is also background radiation in the [https://en.wikipedia.org/wiki/Infrared infrared], [[x-ray]]s, etc., with different causes, and they can sometimes be resolved into an individual source. See cosmic infrared background and X-ray background. See also [https://en.wikipedia.org/wiki/Cosmic_neutrino_background cosmic neutrino background] and [https://en.wikipedia.org/wiki/Extragalactic_background_light extragalactic background light].[https://en.wikipedia.org/wiki/Cosmic_background_radiation]

[[Category: Cosmology]]

[[Category: Cosmology]]