Orion Nebula
The Orion Nebula (Messier 42, NGC 1976) is a bright H II region within the Orion Molecular Cloud Complex, visible to the unaided eye in the sword of the Orion constellation. Located roughly 1,300–1,500 light-years from Earth, it is a nearby laboratory for studying massive star formation, protoplanetary disks, and the interaction between hot, young stars and their natal gas and dust.
