Stellar mergers refer to the process in which two stars collide and combine to form a single, more massive star. This phenomenon can occur in various scenarios, such as binary star systems, where two stars orbit each other closely and eventually merge due to gravitational forces. Stellar mergers can have significant impacts on the evolution and fate of stars, leading to changes in their properties such as mass, size, temperature, and luminosity. These events can also result in the release of large amounts of energy in the form of electromagnetic radiation and gravitational waves. Studying stellar mergers is essential for understanding the life cycle of stars, as well as for gaining insights into the formation of more massive stars, supernovae, and other astronomical events. Researchers often use computational simulations and observational data to investigate the mechanisms and consequences of stellar mergers in different stellar environments.