Never-Before-Seen Supernova Proves Crucial Fact On The Interior Of StarsResearchers report the discovery of supernova SN2021yfj, a first-of-its-kind supernova that changes our knowledge about stars' evolution and death, while confirming something that has been suspected for a very long time. Massive, evolved stars are like onions and ogres: they have layers.The rest of this article is behind a...
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