The Milky Way is the galaxy that contains the Sun and Earth. It is a barred spiral with billions of stars and a dense central region. That mix of features makes our galaxy special.The Milky Way's spiral arms host stars, gas, and dust. Invisible dark matter affects the galaxy's shape and motion. At the center sits a supermassive black hole named Sagittarius A*. The Sun is an ordinary star in a quie...More