SPACE — The Andromeda Galaxy or also called Messier 31 or M31, is the closest large galaxy to the Milky Way. Like the Milky Way, Andromeda is a barred spiral galaxy, so called because of the bar-shaped structure formed by the stars at its center. According to the American Space Agency (NASA), Andromeda is about … Continue reading The Andromeda Galaxy: Facts, Distance, and Potential Collision with Milky Way