The Great Nebula in Orion, also known as M42, is one of the most famous nebulae in the sky. The star forming region’s glowing gas clouds and hot young stars are at the top in this sharp and colorful image that includes the bluish reflection nebulae NGC 1977. Located at the edge of an otherwise invisible giant molecular cloud complex, these eye-catching nebulas represent only a small fraction of this galactic wealth of interstellar material.