red shift

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Definitions from WordNet

Noun red shift has 1 sense

red shift - (astronomy) a shift in the spectra of distant galaxies toward longer wavelengths; generally interpreted as the Doppler effect resulting from the velocity at which they recede as the universe expands
--₁ is a kind of Doppler effect, Doppler shift

Definitions from the Web

Red Shift

Definition: Red shift refers to the phenomenon in which light waves from distant celestial objects, such as galaxies or stars, appear to shift towards the red end of the spectrum. It is one of the key pieces of evidence supporting the theory of the expanding universe.

Example sentences:

The astronomer studied the red shift in the spectral lines of the observed galaxy, indicating its movement away from the Earth.
Due to the red shift observed in the star's light spectrum, scientists concluded that the galaxy was moving farther away.
The red shift data collected by the telescope provided valuable insights into the universe's expansion.
When analyzing the red shift of a galaxy, astronomers can estimate its distance from Earth.

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