Stellar Dynamics is the study of the motion and gravitational interactions of stars within galaxies. It helps astronomers understand how stars move, cluster, and evolve over time, influenced by the gravitational pull of other stars and dark matter. This field is crucial for explaining the structure and behavior of galaxies, including phenomena like spiral arms and stellar clusters. By analyzing the dynamics of stars, researchers can infer the mass distribution of galaxies and the presence of unseen matter. This knowledge is essential for understanding the formation and evolution of the universe, shedding light on the life cycles of stars and the fate of galaxies.