WHAT IS GALAXY???!?!?!????????
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A galaxy is a collection of stars and planets that are held together by gravity. In a galaxy, the celestial bodies rotate around a central object. The Earth's galaxy is known as the Milky Way. Our solar system, made up of the Sun and the planets that encircle it, is a tiny part of that galaxy.
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- Galaxy is a gravitationally bound system of planets, stars, interstellar gas, dust, and dark matter.
- The Universe is filled with galaxies. Galaxies come in a number of shapes and sizes.
- Our Galaxy is called “The Milky Way”. The Milky Way is 100,000 light years across and contains our solar system and other star systems. Our Galaxy contains 100 to 400 billion stars which is vastly more Stars than Population of humans on Earth.
- The next nearest galaxy is Andromeda. It is 2.537 million light years away.
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