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The Milky Way is our home galaxy from "summary" of The Secret World of Stargazing by Adrian West
Our home galaxy, the Milky Way, is a vast and mysterious place that stretches across the night sky like a shimmering river of stars. When we look up at the heavens on a clear night, we are gazing out into the depths of our own galaxy, a spiral-shaped collection of billions of stars, planets, gas clouds, and dark matter. The Milky Way is immense, spanning a distance of about 100,000 light-years from one end to the other. At its center lies a supermassive black hole that exerts a powerful gravitational pull on everything around it. This black hole is surrounded by a dense cluster of stars known as the galactic bulge, which gives the Milky Way its distinctive shape. As we move outward from the center of the galaxy, we encounter the spiral arms, long tendrils of stars and gas that spiral outward like the arms of a giant pinwheel. These spiral arm...
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