The size of a galaxy tells us a lot about its growth and history. Traditionally, the Milky Way's size has been measured using the scale length of its disk, assuming the disk has an exponential density profile. These measurements have suggested that the Milky Way is smaller and more compact compared to other galaxies of similar mass. However, these measurements didn't account for the bulge at the center of the galaxy and assumed a single exponential profile for the disk, which recent observations have shown to be inaccurate