The Horsehead Nebula is a dark nebula located in the constellation Orion. It is part of a larger region known as the Orion Molecular Cloud Complex and is approximately 1,500 light-years away from Earth. The nebula gets its name from its distinctive shape, which resembles a horse's head. This nebula is primarily composed of dust and gas, which block the light from stars behind it. The Horsehead Nebula is a site of star formation, where new stars are born from the surrounding material. It is often studied by astronomers to understand the processes of star formation and the dynamics of interstellar matter.