Messier 82: The Cigar Galaxy
Messier 82, also called the Cigar Galaxy, is a starburst galaxy located about 12 million light years away towards the constellation Ursa Major. It houses the brightest pulsar ever detected, which is likely pulling in nearby material at a high rate to power the glow.
Messier 82 has a neighbor, Messier 81. They passed close to each other about a hundred million years ago. The result of the gravitational interaction of the two pulling at each other was a burst of star formation in Messier 82, classifying it as a starburst galaxy. The young stars emit intense radiation, which blows out gas and dust.