A reflecting telescope is an optical instrument that uses mirrors to gather and focus light from distant objects, such as stars and galaxies. The primary mirror, usually curved, collects light and reflects it to a focal point, where an eyepiece or camera can capture the image. This design allows for larger apertures without the distortion caused by lenses. Invented by Isaac Newton in the 17th century, the reflecting telescope has become a fundamental tool in astronomy. Its ability to produce clear images of celestial bodies has led to significant discoveries and advancements in our understanding of the universe.