observable universe
Appearance
English
[edit]Noun
[edit]observable universe (plural observable universes)
- (astronomy) The extent of a universe within the cosmological horizon of an observer.
- Synonym: known universe
Usage notes
[edit]- Typically the observable universe refers to the observable portion of our universe, relative to an observer on Earth.
Hypernyms
[edit]Translations
[edit]Translations
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Further reading
[edit]observable universe on Wikipedia.Wikipedia