Flares are sudden and dramatic increases in the brightness of a celestial object, such as a star or a black hole. They are typically caused by the release of large amounts of energy in a short amount of time, leading to a temporary increase in radiation output. Flares can provide important insights into the physics of the objects they occur on, as well as information about the surrounding environment. Studying flares can also help scientists better understand the processes that drive the evolution and behavior of these objects.