define galaxy????????????????????????????????????????????????????
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Hye here is your answer
Explanation:
A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. ... A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity.
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Explanation:
a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
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