- 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 explanation is that there is a cosmological red shift due to the expansion of space itself.
From Textbooks ● Aug. 12, 2015
All galaxies farther away than about 50×106 ly exhibit a red shift in their emitted light that is proportional to distance, with those farther and farther away having progressively greater red shifts.
From Textbooks ● Aug. 12, 2015
If the universe were expanding faster in some directions than in others, the intensity of the radiation in those directions would be reduced by an additional red shift.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
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.
