Stellar outbursts refer to sudden and temporary increases in the brightness of a star. These outbursts can be caused by a variety of factors, including stellar winds, supernova explosions, or interactions with a companion star. Stellar outbursts can provide important insights into the behavior and evolution of stars, as well as the processes that govern the release of energy in the universe. Studying these outbursts can help astronomers better understand the life cycles of stars and the impact they have on their surrounding environments.