Question

Define galaxy...... ​

Answer 1

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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. When you look up at stars in the night sky, you're seeing other stars in the Milky Way.

Answer 2

Answer:-

Galaxy is a group of stars and other solar system like systems bound together by gravity by a powerful black hole in the middle. The solar system lies in the milky way galaxy.

Hope it helps you. ☺