noun
- the displacement of spectral lines toward longer wavelengths in radiation from distant galaxies and other celestial objects
Usage: astronomy; physics
verb
- to show or cause a redshift
Usage: astronomy; physics
Examples
- The redshift of distant galaxies provides evidence for the expansion of the universe.
- Astronomers measure redshift to determine how fast galaxies are moving away from us.
- The greater the redshift, the more distant the galaxy appears to be.
- Light from the quasar showed a significant redshift.
- The spectrum redshifted as the star moved away from Earth.
- Scientists use redshift data to study cosmic evolution.