Submillimeter wavelength radio observations of the Southern Ring Nebula have identified that it's actually a double ring, shaped by the interactions of three stars.

The Horsehead Nebula, one of the most famous formations of the cosmos, has just been revealed in a stunning new light. NASA released photos this week that give the equine-shaped feature a literal close-up,

The Horsehead Nebula, which NASA has called "one of the most distinctive objects in our skies," is located in the constellation Orion.