Astronomers confirm there’s a third type of supernova explosion, called an "electron-capture" supernova. The new sighting shores up a decades-old suspicion about the nature of a long-lived supernova seen in 1054 A.D., which created the famous Crab Nebula.
Discovery of a New Type of Stellar Explosion – An Electron-Capture Supernova – Illuminates a Medieval Mystery
Quantization of Electric Charge: Absorption of an Individual Electron Captured on Film
