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Peeling Back the Cosmic Onion
Astronomers just caught a cosmic spectacle: a supernova that peeled back a dying star’s outer layers, revealing its inner silicon shell for the first time. This rare “extremely stripped supernova,” SN2021yfj, challenges old theories and offers a rare glimpse into how massive stars forge the elements that make up everything we know — from oxygen to sulfur, and even ourselves. Scientists believe a second star may have stripped away the outer layers, exposing the silicon core before the explosion. It’s a stunning confirmation that stars are the universe’s element factories, constantly recycling…
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