This dramatic image offers a peek inside a cavern of roiling dust and gas where thousands of stars are forming. The image, taken by the Advanced Camera for Surveys (ACS) aboard NASA's Hubble Space Telescope, represents the sharpest view ever taken of this region, called the Orion Nebula.
M57 also cataloged as NGC 6720, known as The Ring Nebula. This nebula, roughly 500 times the diameter of our Solar System, is a planetary nebula, a gas cloud emitted at the end of a Sun-like star's existence. It appears in the constellation of Lyra, and is about 4,000 light from Earth.