Galactic dynamics is the study of the motion and interactions of stars, gas, and dark matter within galaxies. This field of research focuses on understanding the formation, evolution, and structure of galaxies, as well as the mechanisms that govern their movement and behavior. Scientists use observational data, theoretical models, and computer simulations to investigate how galaxies rotate, collide, merge, and interact with each other in the vast expanse of the universe. By studying galactic dynamics, researchers aim to uncover the underlying physical processes that shape the appearance and dynamics of galaxies, as well as shed light on the fundamental principles of astrophysics and cosmology.