The image is of the Andromeda Galaxy, also known as M31, is the nearest spiral galaxy neighbor to the Milky Way, and only a 2.5 million light-year voyage from Earth. A larger than normal galaxy, Andromeda, is estimated to contain more than twice the amount of stars as the Milky Way; which means there are approximately 1 Trillion stars (and quite possibly 1 trillion solar systems) in Andromeda alone.