- a variation of redshift.
red shift
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The red shift that can be observed in light from distant galaxies suggests that the universe is expanding, and thus supports the Big Bang theory.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Its principal task was to show that the gravitational pull of the sun increased the wavelength of light rays, the so-called red shift, which would help verify Einstein’s theory of relativity.
From The Wall Street Journal ● Jul. 24, 2026
The red shift indicates a change in the electronic structure or optical properties of the material.
From Science Daily ● May 3, 2024
The red shift of the intervening galaxy is always less than that of the one being lensed, and each image of the lensed galaxy has the same red shift.
From Textbooks ● Aug. 12, 2015
The explanation is that there is a cosmological red shift due to the expansion of space itself.
From Textbooks ● Aug. 12, 2015
But some other exotic mechanism will be required to explain the red shift.
From "Cosmos" by Carl Sagan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.