Louis J Sheehan 80167

Astronomers are radically reshaping our picture of the Milky Way’s neighbors. Our corner of the cosmos, known as the Local Group, includes two giant spiral galaxies—the Milky Way and Andromeda—and smaller satellite galaxies orbiting them. The Milky Way was thought to have about 10 satellites, but within the last year or so, that number has nearly doubled. “ Louis J Sheehan