from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A change in the wavelength of light, in which the wavelength is longer than when it was emitted at the source.
  • n. The statistical bias towards Republican (or Blue Dog) candidates of US federal elections whose reported results vary considerably from those indicated by voter exit polls.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum); generally interpreted as evidence that the universe is expanding


red +‎ shift (Wiktionary)


  • Conversely, to achieve a certain redshift in such a universe, the light has to travel a greater distance than it would in a uniformly expanding universe, in which case the supernova has to be farther away and therefore appear dimmer.

    Archive 2009-03-01

  • The stretching makes visible light look redder, which is known as the redshift.

    George’s Cosmic Treasure Hunt

  • Edwin Hubble observed and measured the departure of galaxies using a technique known as the redshift in physics.

    Santhosh Mathew, PhD: The Mirror on the Universe Is 21 Years Old Now

  • Whether this would explain all of the redshift is another matter, but it would seem to explain redshift as having other possible causes then only recession.

    A Dark, Misleading Force

  • The advantages of this new method is that it goes to high redshift, that is, it looks at the expansion history of the Universe from 1. 7-6.3 in redshift.

    Evolving dark energy?

  • It has a so-called redshift of 6.29, which translates to a distance of about 13 billion light-years from Earth.

    Cosmic Violence

  • Astronomers measure the distance to objects in space by measuring how much their light is stretched toward the red end of the light spectrum, a factor known as "redshift."

    Yahoo! News: Business - Opinion

  • Astronomers measuring the age of starlight look for something called redshift: the farther that light travels, the longer and "redder" become its wavelength. | Top Stories

  • The spectrograph also allowed scientists to pin down the galaxy's so-called redshift, a measure of how fast the galaxy and Earth were moving away from each other due to the expansion of the universe. - News

  • The speeds are known as redshift velocities, for their effect on a galaxy's spectrum.

    NYT > Home Page


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