Stars merge and go supernova
An excerpt from the Planetarium Show "The Hot and Energetic Universe".
A supernova is an astronomical event that occurs during the last stellar evolutionary stages of a massive star's life, whose dramatic and catastrophic destruction is marked by one final titanic explosion. This causes the sudden appearance of a "new" bright star, before slowly fading from sight over several weeks or months.Credit:
ESO/L. Calçada, Th. Matsopoulos