Contemporary Examples

The authors took care to eliminate the possibility of other sources of polarization, which is always a concern in astronomy.

Muslims made many discoveries in mathematics, chemistry, physics, medicine, astronomy and psychology.

Nearly everything we know about dark matter so far comes from astronomy.

One of the big challenges in astronomy involves determining when the first galaxies formed, and what they looked like.

Cosmic ray observations are more challenging than many other forms of astronomy.

British Dictionary definitions for astronomy Expand

the scientific study of the individual celestial bodies (excluding the earth) and of the universe as a whole. Its various branches include astrometry, astrodynamics, cosmology, and astrophysics

Word Origin

C13: from Old French astronomie, from Latin astronomia, from Greek; see astro-, -nomy

Word Origin and History for astronomy Expand

c.1200, from Old French astrenomie, from Latin astronomia, from Greek astronomia, literally "star arrangement," from astron "star" (see astro-) + nomos "arranging, regulating," related to nemein "to deal out" (see numismatics). Used earlier than astrology and originally including it.

astronomy in Science Expand

astronomy in Culture Expand

The science that deals with the universe beyond the Earth. It describes the nature, position, and motion of the stars, planets, and other objects in the skies, and their relation to the Earth.

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Astronomy | Define Astronomy at Dictionary.com