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astronomy

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English

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Etymology

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FromMiddle Englishastronomie,astronemy, fromOld Frenchastronomie, equivalent toastro- +‎-nomy. Displaced nativeOld Englishtungolcræft.

Pronunciation

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Noun

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astronomy (usuallyuncountable,pluralastronomies)

  1. The study of thephysicaluniverse beyond the Earth'satmosphere, including the process ofmappinglocations andproperties of thematter andradiation in the universe.
    • 2011 October 9, Meg Urry, “Dark energy, science’s biggest mystery”, inCNN[1]:
      The fact is, dark energy is the biggest mystery in science. It has driven a huge amount of research in the past decade, and was a key driver in last year’s “New Worlds, New Horizons” report from the National Academies of Science, which prioritized futureastronomy and astrophysics projects.
  2. (obsolete)Astrology.

Usage notes

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  • The study of the physical processes which control matter and energy in the universe is commonly calledastrophysics. The investigation of the origin, evolution, and fate of the universe itself is calledcosmology.

Hypernyms

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Hyponyms

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Derived terms

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Related terms

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Translations

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study of the physical universe beyond the Earth's atmosphere

See also

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References

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  • astronomy”, inOneLook Dictionary Search.
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