Southern Ring Nebula
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Southern Ring Nebula

The third image is two photos of the Southern Ring Nebula, a side-by-side comparison of images captured by Webb's NIRCam and Mid-Infrared Instrument (MIRI). NASA writes, 'This scene was created by a white dwarf star – the remains of a star like our Sun after it shed its outer layers and stopped burning fuel though nuclear fusion. Those outer layers now form the ejected shells all along this view.'

The Southern Ring, or 'Eight-Burst' nebula, is a planetary nebula. It's an expanding cloud of gas that surrounds a dying star. The Southern Ring Nebula is relatively close to Earth. It's about 2,000 light-years from us. The nebula is very big; about half a light-year in diameter.