The main purpose of a telescope is to observe distant objects by collecting and magnifying their light. Telescopes are essential tools in astronomy, allowing scientists to study celestial bodies, such as stars, planets, and galaxies, in great detail. By using lenses or mirrors, telescopes can enhance the visibility of objects that are not discernible to the naked eye. There are two primary types: optical telescopes, which focus visible light, and radio telescopes, which detect radio waves. Telescopes have significantly advanced our understanding of the universe, leading to discoveries about the formation of celestial structures and the existence of exoplanets.