Supernova progenitors are the stars that eventually undergo a supernova explosion at the end of their life cycle. Understanding the nature and characteristics of these progenitor stars is a key area of research in astrophysics, as it can provide valuable insights into the processes that lead to supernova explosions and the evolution of massive stars. Researchers study supernova progenitors through various observational and theoretical methods, such as analyzing the properties of supernova remnants, studying the evolution of massive stars, and searching for precursor stars in nearby galaxies. By studying supernova progenitors, scientists hope to gain a better understanding of the mechanisms that drive supernova explosions and the role of massive stars in shaping the evolution of galaxies.