Question

What do you mean by Galaxy?​

Answer 1

What do you mean by Galaxy?

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle.

Some scientists think there could be as many as one hundred billion galaxies in the universe.

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Answer 2

Answer:

a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.