A supernova progenitor is a star that is on the brink of undergoing a supernova explosion. These stars are typically massive, with masses at least 8 times that of the Sun, and they have exhausted their nuclear fuel, leading to the collapse of their core and the subsequent catastrophic explosion. Studying supernova progenitors is important for understanding the processes that lead to these powerful cosmic events and for gaining insight into the evolution and fate of massive stars. Researchers study supernova progenitors through various methods, such as observing their properties and behaviors, modeling their evolution, and analyzing the remnants left behind after the supernova explosion.