Astronomy - Wikipedia Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets
Astronomy | Definition, History, Discoveries, Facts | Britannica Astronomy is the study of objects and phenomena beyond Earth, whereas cosmology is a branch of astronomy that studies the origin of the universe and how it has evolved For example, the big bang, the origin of the chemical elements, and the cosmic microwave background are all subjects of cosmology
ASTRONOMICAL Definition Meaning | Dictionary. com adjective of, relating to, or connected with astronomy extremely large; exceedingly great; enormous It takes an astronomical amount of money to build a car factory
astronomical - Wiktionary, the free dictionary astronomical (comparative more astronomical, superlative most astronomical) (not comparable, astronomy) Of or relating to astronomy Drawings and pictures are more than mere ornaments in scientific discourse
Astronomical Definition Meaning | YourDictionary Of or having to do with astronomy Of enormous magnitude; immense An astronomical increase in the deficit Extremely large, like the numbers or quantities used in astronomy (not comparable) Of or relating to astronomy