
X-ray shock breakout marks the death of a 30-solar-mass star, tracked for months
Astronomers detected an X-ray shock breakout signaling the core collapse of a star about 30 times the Sun’s mass, then watched the resulting broad-lined Type Ic supernova SN 2026gzf for nearly three months across multiple wavelengths. Located ~500 million light-years away, it produced no gamma-ray burst, suggesting jets were choked and the star likely left a black hole, providing a rare, detailed look at the end stages of massive-star evolution.


