what galaxy means please tell fast
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galaxy is a collection of stars and planets that are held together by gravity. In a galaxy, the celestial bodies rotate around a central object. The Earth's galaxy is known as the Milky Way. Our solar system, made up of the Sun and the planets that encircle it, is a tiny part of that galaxy.
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A system of millions and billions of stars and dust ..together with gas..all held together by gravitational force..
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