Hubble volume

Hubble volume

English

Noun

Hubble volume (plural Hubble volumes)

  1. (cosmology) the spherical region of the observable universe surrounding an observer beyond which objects recede from that observer at a rate greater than the speed of light due to the expansion of the Universe.

Synonyms

  • Hubble sphere
  • subluminal sphere
  • causal sphere
  • sphere of causality

See also

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