The Andromeda Galaxy is a spiral galaxy approximately 2.537 million light-years away from Earth and is the closest large galaxy to our Milky Way. It plays a crucial role in understanding the structure and expansion of the universe, as it is one of the few galaxies that can be observed with the naked eye and serves as a key point of reference in astronomical studies.
congrats on reading the definition of Andromeda Galaxy. now let's actually learn it.