.Sets of superstars set the interstellar tool ablaze in the Andromeda Galaxy regarding 2.5 million light-years away. Also known as M31, Andromeda is the Galaxy's closest major universe. It measures roughly 152,000 light-years throughout and also, with nearly the very same mass as our home galaxy, is headed for a wreck along with the Galaxy in 2-4 billion years. Meanwhile, Andromeda remains a things of study for lots of astronomers.