A distant supernova exposed elements from a star’s core. The result reshapes ideas of how massive stars evolve. According to long-standing theory, stars are built in layers like onions, with each layer composed of different elements that grow heavier toward the core. While this model is widely accepted, directly observing a star’s deeper layers has […]



Summary

The recent observation of a distant supernova has revealed elements ejected from a star’s core, challenging conventional theories of stellar evolution. The “onion-like” layered structure, with heavier elements concentrated towards the core, is the accepted model for massive stars. This supernova provided a rare glimpse into the depths of a star, offering direct evidence of core composition. This discovery suggests the traditional layered model might be incomplete, implying that the internal mixing and processes within these massive stars could be more complex than previously understood. It prompts a re-evaluation of how these stars evolve and distribute heavy elements into the universe.

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