Milky Way
The Milky Way is the galaxy that contains our Solar System. Its name “milky” is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. .
The Milky Way is a has a diameter around 150,000 light-years. It contains billions of stars and planets. The Solar System is located, about 27,000 light-years from the Galactic Center. The very center is marked by a supermassive black hole.