What are three parts of the Galaxy?

The Galaxy, specifically the Milky Way, consists of three main parts: the stellar disk, the bulge, and the halo. The stellar disk contains most of the Galaxy's young stars, gas, and dust, where star formation occurs. The bulge is a densely packed region of older stars located at the center, often housing a supermassive black hole. The halo surrounds the Galaxy, containing older stars, globular clusters, and dark matter, providing a gravitational framework for the Galaxy's structure.