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ShareIn physics and astronomy, redshift is an observed increase in the wavelength of electromagnetic radiation received by a detector compared to that emitted by the source.
For visible light, red is the color with the longest wavelength, so colors experiencing redshift shift towards the red part of the electromagnetic spectrum.
For more information about the topic Redshift, read the full article at Wikipedia.org, or see the following related articles:
Doppler effect — The Doppler effect, named after Christian Andreas Doppler, is the apparent change in frequency or wavelength of a wave that is perceived by an ... > read more
Quasar — A quasar is an astronomical source of electromagnetic energy, including light, which shows a very high redshift. The scientific consensus is that ... > read more
Astrophysics — Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, ... > read more
Large-scale structure of the cosmos — In physical cosmology, the term large-scale structure refers to the characterization of observable distributions of matter and light on the largest ... > read more
Hubble Deep Field — The Hubble Deep Field (HDF) is an image of a small region of the sky, based on the results of a series of observations by the Hubble Space Telescope. ... > read more
Electromagnetic spectrum — The electromagnetic spectrum is the range of all possible electromagnetic radiation. Above infrared in frequency comes visible light. This is the ... > read more
Spectroscopy — Spectroscopy is the study of spectra, that is, the dependence of physical quantities on frequency. Spectroscopy is often used in physical and ... > read more
Cosmic microwave background radiation — In cosmology, the cosmic microwave background radiation is a form of electromagnetic radiation discovered in 1965. It has a thermal black-body ... > read more
Edwin Hubble — Edwin Powell Hubble (November 20, 1889 - September 28, 1953) was an American astronomer, noted for his discovery of galaxies beyond the Milky Way and ... > read more
Gamma ray burst — Gamma-ray bursts are the most luminous physical phenomena in the universe known to the field of astronomy. They consist of flashes of gamma rays that ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Redshift at Wikipedia.org. See the Wikipedia copyright page for more details.
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