The Orion Nebula(M42) and The Running Man Nebula or also known as Orion's Sword in the Constellation Orion. Enormous amount of gas clouds and space dust. It's approx. 1,300 light years away from Earth! and around 30-40 light years in diameter! The Orion Nebula has a mass of about 2,000 times that of the Sun!
It would be interesting to know how this was shot.