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  2. Cosmic background radiation - Wikipedia

    en.wikipedia.org/wiki/Cosmic_background_radiation

    The 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 infrared, x-rays, etc., with different causes, and they can sometimes be resolved into an individual source. See cosmic infrared ...

  3. Cosmic microwave background - Wikipedia

    en.wikipedia.org/wiki/Cosmic_microwave_background

    The anisotropy, or directional dependency, of the cosmic microwave background is divided into two types: primary anisotropy, due to effects that occur at the surface of last scattering and before; and secondary anisotropy, due to effects such as interactions of the background radiation with intervening hot gas or gravitational potentials, which ...

  4. Dark matter - Wikipedia

    en.wikipedia.org/wiki/Dark_matter

    Dark matter does not interact directly with radiation, but it does affect the cosmic microwave background (CMB) by its gravitational potential (mainly on large scales) and by its effects on the density and velocity of ordinary matter.

  5. Background radiation - Wikipedia

    en.wikipedia.org/wiki/Background_radiation

    Displayed background gamma radiation level is 9.8 μR/h (0.82 mSv/a) This is very close to the world average background radiation of 0.87 mSv/a from cosmic and terrestrial sources. Cloud chambers used by early researchers first detected cosmic rays and other background radiation. They can be used to visualize the background radiation

  6. Outline of astronomy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_astronomy

    Astronomy – studies the universe beyond Earth, including its formation and development, and the evolution, physics, chemistry, meteorology, and motion of celestial objects (such as galaxies, planets, etc.) and phenomena that originate outside the atmosphere of Earth (such as the cosmic background radiation).

  7. Cosmic neutrino background - Wikipedia

    en.wikipedia.org/wiki/Cosmic_neutrino_background

    The cosmic neutrino background (CNB or C ν B [a]) is the universe's background particle radiation composed of neutrinos.They are sometimes known as relic neutrinos.. The C ν B is a relic of the Big Bang; while the cosmic microwave background radiation (CMB) dates from when the universe was 379,000 years old, the C ν B decoupled (separated) from matter when the universe was just one second old.

  8. Diffuse extragalactic background radiation - Wikipedia

    en.wikipedia.org/wiki/Diffuse_extragalactic...

    The overall diffuse extragalactic radiation field may be divided in different regions according to their origin and physical processes involved. This is a standard classification from the highest down to the lowest energies: Diffuse extragalactic gamma-ray radiation (also known as cosmic gamma-ray background) Cosmic X-ray background

  9. Cosmic background - Wikipedia

    en.wikipedia.org/wiki/Cosmic_background

    Cosmic background may refer to: Cosmic microwave background radiation (CMB) Cosmic neutrino background (CνB) Cosmic gravitational wave background (GWB)