what is the meaning of this question is galaxy of space
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what is the meaning of this question is galaxy of space
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Answer:
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.
Answer:
A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system. ... A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity.
200 billion galaxies .This led to an estimate that the observable universe contained about 200 billion galaxies