Telescope readings in two near-infrared bands reveal cosmic bursts that vary in brightness and duration. Five to six bursts per day around the black hole According to scientists,

Astronomers have spotted displays of flashing lights and “fireworks” near a supermassive black hole at the center of the Milky Way galaxy, a finding researchers said could reveal details about how black holes—among the most mysterious objects in space—behave and interact with their environment.