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Hubble's law
noun
, Astronomy.
- the law that the velocity of recession of distant galaxies from our own is proportional to their distance from us.
Hubble's law
noun
- astronomy a law stating that the velocity of recession of a galaxy is proportional to its distance from the observer
Hubble's law
/ hŭb′əlz /
- A law of cosmology stating that the rate at which astronomical objects in the universe move apart from each other is proportional to their distance from each other. Current estimates of the value of this proportion, known as Hubble's constant , put its value at approximately 71 kilometers per second per megaparsec.
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Word History and Origins
Origin of Hubble's law1
First recorded in 1930–35; named after E. P. Hubble, discoverer of the relationship
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