red shift

Scientific  

1. See under Doppler effect

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red shift Cultural  

1. In physics, the reddening of light sent out by an object that is moving away from an observer. (See Doppler effect.)

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Discover More

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

The red shift indicates a change in the electronic structure or optical properties of the material.

From Science Daily

Since 2009, Riess and his colleagues have used various telescopes to create an elaborate “distance ladder” of the distances and red shifts of nearby galaxies.

From Science Magazine

Even after adjusting the diopter, white text on the outer edges of the EVF has green and red shifts that I never got used to.

From The Verge

The star spotted by Mr. Welch and his colleagues possesses what astronomers call a red shift of 6.2, far higher than the previous record-holder for most distant single star.

From New York Times

The red shift in the border region is a question of engagement, Castro said.

From Washington Post