: a displacement of the spectrum of a celestial body toward longer wavelengths that is a consequence of the Doppler effect or the gravitational field of the source
also: a measurement of a celestial body's redshift equal to the ratio of the displacement of a spectral line to its known unshifted wavelength and used especially to calculate the body's distance from earth
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The sum of all of them adds to the net gravitational redshift/blueshift for all waves, including gravitational waves.โ๐ Image Big Think, 3 Apr. 2026 The higher the redshift, the farther the object is.โ๐ Image Jackie Flynn Mogensen, Scientific American, 28 Jan. 2026 These criteria are mostly concerned with avoiding the formation of molecular hydrogen, which can efficiently cool the gas at high redshift, favoring the formation of smaller stars.โ๐ Image Robert Lea, Space.com, 27 Jan. 2026 Combining these ages with the galaxies' redshifts reveals how much the universe has expanded while the light was traveling to us, offering another way to trace the cosmic expansion history.โ๐ Image Lydia Patrick, MSNBC Newsweek, 8 July 2025 See All Example Sentences for redshift
