Read, Watch or Listen

Scientists have, for the first time, observed the internal structure of a dying star during a supernova explosion. Supernova 2021yfj, located in the Milky Way, revealed its inner layers of silicon and sulfur had been shed before exploding, a phenomenon never before seen. This observation confirms theories about the layered structure of massive stars nearing their end, with lighter elements on the outside and heavier elements closer to the core. The cause of the star's extensive stripping—whether a violent ejection or interaction with a binary companion—remains uncertain and requires further investigation.

Prepared by Olivia Bennett and reviewed by editorial team.