Segmented telescopes are a type of telescope that consists of multiple smaller mirror segments combined to create a larger aperture. Each mirror segment is typically hexagonal in shape and aligned to work together as a single optical surface to gather and focus light. Segmented telescopes are used in large telescope projects where it is impractical to create a single large mirror due to cost, weight, or technical limitations. The segments are aligned and controlled using advanced technology to ensure they function as a single, coherent optical system. This design allows for larger apertures and increased light-gathering capabilities compared to traditional single-mirror telescopes.