Scientists have gotten a rare peek into a dying star, exposing its interior as it exploded. The most massive stars go out with a bang in explosions called supernovas.

A completely new supernova variant finally shows a glimpse of a star’s innermost “guts” moments before its destruction. Detailed in a study published August 20 in the journal Nature, their study confirms a longstanding theory about the internal structure of massive stellar objects,

Scientists have witnessed the inside of a dying star as it exploded for the first time, providing an unprecedented glimpse into how stars evolve. Stars can survive for millions to trillions of years before their fuel runs out.