ASASSN-15lh

ASASSN-15lh is an extremely luminous stellar explosion, initially thought to be a superluminous supernova—a rare, extraordinarily bright explosion marking the death of a massive star. However, its brightness and characteristics have led scientists to consider an alternative explanation: it might be a tidal disruption event, where a star gets torn apart by a supermassive black hole. Located in a distant galaxy, ASASSN-15lh's unusual intensity challenges existing models of stellar explosions, making it a significant object for understanding extreme cosmic phenomena and black hole interactions.