Galactic structure is a branch of astrophysics that focuses on understanding the organization and composition of galaxies, including the Milky Way. Researchers in this field study the distribution of stars, gas, dust, and dark matter within galaxies, as well as their overall shapes, sizes, and dynamics. By analyzing the structure of galaxies, scientists can gain insights into their formation and evolution, as well as the processes that shape their properties and behavior. This research area plays a key role in advancing our understanding of the universe and the fundamental principles that govern the formation and evolution of galaxies.