observable universe

collocation in English

meaningsofobservableanduniverse

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withuniverse.
observable
adjective
uk
/əbˈzɜː.və.bəl/us
/əbˈzɝː.və.bəl/
that can be noticed ...
See more atobservable
universe
noun
uk
/ˈjuː.nɪ.vɜːs/us
/ˈjuː.nə.vɝːs/
everything that exists, especially all physical matter, including all the stars, planets, galaxies, etc. ...
See more atuniverse

(Definition ofobservableanduniversefrom theCambridge English Dictionary© Cambridge University Press)

Examplesofobservable universe

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
What is the mass of theobservableuniverse?
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These high-energy bursts are observed about once per day and originate throughout theobservableuniverse.
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The behavior of matter and energy throughout theobservableuniverseappears to follow well-defined physical laws.
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There are probably more than 170 billion galaxies in theobservableuniverse.
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Theobservableuniverseis about 46 billion light years in radius.
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Another possibility is that antimatter dominated regions exist within the universe, but outside ourobservableuniverse.
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Theobservableuniversewas actually only a very small part of the actual universe.
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This hypothesis relies on the vast size and consistent physical laws of theobservableuniverse.
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Helium is the second lightest element and is the second most abundant in theobservableuniverse.
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It is one of the largest known superstructures in theobservableuniverse.
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It is the largest and the most massive structure known in theobservableuniverse.
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The spatial region within which we can affect and be affected is theobservableuniverse.
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For example, theobservableuniversemay be many orders of magnitude smaller than the entire universe.
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Assuming the universe is isotropic, the distance to the edge of theobservableuniverseis roughly the same in every direction.
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Theobservableuniverseis one "causal patch" of a much larger unobservable universe; there are parts of the universe that can not communicate with us yet.
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Although in restricted contexts one may find this symmetry, theobservableuniverseitself does not show symmetry under time reversal, primarily due to the second law of thermodynamics.
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It is plausible that the galaxies within ourobservableuniverserepresent only a minuscule fraction of the galaxies in the universe.
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A conservative estimate based on this indicates that up to two quark-novae may occur in theobservableuniverseeach day.
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Some estimates imply that there are roughly baryons (almost entirely protons and neutrons) in theobservableuniverse.
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It represents the boundary between the observable and the unobservable regions of the universe, so its distance at the present epoch defines the size of theobservableuniverse.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
Want to learn more?
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Go to the definition ofuniverse
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