1987 Supernova Neutrino Burst Confirmed Core-Collapse Theory
In 1987, a supernova in the Large Magellanic Cloud, known as SN 1987A, provided the first direct evidence of a core-collapse supernova through the detection of neutrinos. Detectors in Japan, the United States, and the Soviet Union recorded a burst of neutrinos hours before the light from the supernova was visible on Earth. This event confirmed theoretical predictions about the role of neutrinos in supernovae and provided insights into the processes occurring during a star's collapse. The detection of neutrinos from SN 1987A marked a significant milestone in neutrino astronomy. 
