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Astronomy is an academic discipline and major branch of science that deals with the study of matter, objects, and phenomena in outer space and the Universe.
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Astronomy is an academic discipline and major branch of science that deals with the study of matter, objects, and phenomena in [outer space](https://en.wikipedia.org/wiki/Outer_space) and the Universe. Subfields include astrophysics, planetary science, astrobiology, and astrochemistry.
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