Scientists Uncover Inner Secrets of a Rare Supernova Explosion

TL;DR Summary
A new supernova variant, SN2021yfj, has provided rare insights into a star's innermost layers before explosion, revealing heavy elements like silicon, sulfur, and argon, and suggesting a violent internal process possibly involving internal shell ejections or other exotic pathways, challenging existing star life cycle models.
- Violent supernova spilled a star’s ‘guts’ before exploding yahoo.com
- Onionlike Space Explosion May Be a New Type of Supernova The New York Times
- Astronomers get first look inside a dying star at it explodes Australian Broadcasting Corporation
- Scientists get a rare peek inside of an exploding star ABC News
- Extremely stripped supernova reveals a silicon and sulfur formation site Nature
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