Scientists have identified a never-before-seen supernova, SN2021yfj, which exploded after losing nearly all of its outer layers. Instead of light elements, it revealed silicon and sulfur from deep within the star—direct proof of a layered stellar structure. The discovery challenges existing theories and suggests stars may die in more exotic ways than textbooks predict.
Source: https://www.sciencedaily.com/releases/2 ... 004234.htm
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