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What Is a Galaxy? 🌌 | Simple Explanation
What is a galaxy? A galaxy is a massive system of stars, planets, gas, and dust held together by gravity. Our Earth is part of the Milky Way Galaxy, which contains billions of stars. 🌌 Galaxy = huge group of stars 🪐 Includes planets, gas, and dust 🌍 We live in the Milky Way Billions of galaxies exist Explore simple space science with ...
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