.Bunches of superstars set the interstellar medium ablaze in the Andromeda Universe about 2.5 million light-years away. Additionally called M31, Andromeda is actually the Milky Way's closest major galaxy. It measures roughly 152,000 light-years across and, along with almost the same mass as our home galaxy, is actually gone to a crash along with the Milky Way in 2-4 billion years. In the meantime, Andromeda remains an item of research study for several stargazers.