.Collections of superstars specified the interstellar medium ablaze in the Andromeda Universe regarding 2.5 million light-years away. Also called M31, Andromeda is actually the Milky Way's closest primary galaxy. It gauges roughly 152,000 light-years around and also, with virtually the same mass as our home universe, is headed for a wreck with the Galaxy in 2-4 billion years. Meanwhile, Andromeda remains a things of study for several astronomers.