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What is Galaxy ???????​

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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.

  • In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, LENTICULAR galaxies, elliptical galaxies, and irregular galaxies.

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