What does the term astronomy define? Astronomy means a science of nature which is related to study on celestial or ethereal objects (like stars, comets, and planets, clusters of stars, galaxies and nebulae) as well as phenomena which originates outside atmosphere of Earth (like cosmic-background-radiation). Astronomy is implicated with evolution, chemistry, physics, motion and meteorology of celestial-objects and development as well as formation of our Universe.
Astronomy comes in one of
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