A recent analysis of an unusual rhythmic supernova suggests that we may have witnessed the birth of a black hole or neutron star from a dying star.
When a star runs out of fuel for nuclear fusion, it undergoes a supernova event. During this event, the star collapses in on itself, causing a bright explosion as material is blasted out.
Astronomers have gathered evidence that connects extremely massive supernovae to the formation of compact objects such as neutron stars and black holes.