Question

what is galaxy and universe?​

Answer 1

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Answer:

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Explanation:

Galaxy:

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

The word galaxy is derived from the Greek galaxias, literally "milky", a reference to the Milky Way.

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Universe :

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.

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Answer 2

Answer:

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas,dust and dark matter. The word galaxy is derived from the Greek Galaxies, Literally "milky", a reference to the Milky Way.

Explanation:

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