noun

• A law stating that the red shifts in the spectra of distant galaxies (and hence their speeds of recession) are proportional to their distance.

  ‘Next he talked a bit about Hubble's law; that the velocity at which a galaxy is moving is proportional to its distance away from us.’

  More example sentences

  • ‘Doesn't that contradict Hubble's law, which states that distance is correlated with age?’
  • ‘One is the red shift of light coming from remote galaxies which is usually attributed to Doppler's effect and obeys Hubble's law.’