O ne of the most photographed objects in the night sky is the Ring Nebula, wreckage of a bygone sun-like star about 2,000 light-years from Earth. Its striking, smoke-ring-like app ...
The Cat's Eye Nebula, also known as NGC 6543, is a visual "fossil record" of the dynamics and late evolution of a dying star. The Horsehead Nebula is a dark cloud of dust and gas in the constellation ...
This NASA/ESA Hubble Space Telescope image presents a visually striking collection of interstellar gas and dust. The Orion Nebula is a picture book of star formation, from the massive, young stars ...