Elliptical galaxies are a class of large galaxies characterized by their smooth, ellipsoidal shapes, which range from nearly perfect spheres to highly flattened ovals. Structurally, they are defined by their lack of prominent spiral arms or distinct features, and they typically consist primarily of older stellar populations that emit a steady, reddish light. These galaxies are thought to form through the process of gravitational interactions and mergers between smaller, more complex galaxies. They are frequently observed in the centers of galaxy clusters, where the dense environment facilitates stellar dynamics and the consumption of gas necessary for ongoing star formation, resulting in stellar populations dominated by evolved, low-mass stars.