It's the Helix Nebula, NGC 7293, 700 light-years away from Earth. Once upon a time it was a star like ours. As it died, it expanded engulfing everything around it. The gas cloud was created at the end. At the center, the stellar core "glows in light so energetic it causes the previously expelled gas to fluoresce."
This picture was taken using "three colors on infrared light by the 4.1-meter Visible and Infrared Survey Telescope for Astronomy (VISTA) at the European Southern Observatory's Paranal Observatory in Chile." The gas knots that you can see on the inner edge are of "unknown origin."
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