The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion. It is one of the brightest nebulae, visible to the naked eye in the night sky. The entire Orion Nebula in a composite image of visible light and infrared; taken by Hubble Space Telescope in 2006