Shapley Locates the Milky Way's Center

In 1918, American astronomer Harlow Shapley published his groundbreaking research on globular clusters, proving that the Milky Way galaxy was much larger than previously thought and that our solar system was not at its center. By mapping the distribution of globular clusters, Shapley determined that they formed a spherical arrangement around a point in the constellation Sagittarius, which he correctly identified as the center of our galaxy. This discovery fundamentally changed our understanding of the Milky Way's structure and our place within it, displacing Earth from its presumed central position in yet another astronomical paradigm shift.