Hubble volume

noun

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.

Similar
Hubble spheresubluminal spherecausal spheresphere of causality
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Meanings

nounHubble volume (plural Hubble volumes)

plural Hubble volumes

  1. astronomyThe 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

Synonyms & antonyms

nounThe 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.

Similar
Hubble spheresubluminal spherecausal spheresphere of causality

Translations

Hungarian Hubble-sugár
  • Hubble-sugárthe spherical region of the observable universe surrounding an observer
Cite this entry
APA

Hubble volume. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Hubble%20volume

MLA

“Hubble volume.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Hubble%20volume. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Hubble volume,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Hubble%20volume.

Source: Hubble volume on Wiktionary, CC BY-SA 4.0.