.Bunches of stars set the interstellar medium ablaze in the Andromeda Galaxy regarding 2.5 million light-years away. Additionally referred to as M31, Andromeda is the Galaxy's closest primary universe. It gauges roughly 152,000 light-years around and, with nearly the very same mass as our home universe, is gone to a collision with the Galaxy in 2-4 billion years. In the meantime, Andromeda stays an item of study for numerous astronomers.