Large telescopes are powerful, advanced optical devices that are used to observe distant objects in space with great clarity and detail. These telescopes are typically equipped with large mirrors or lenses that gather and focus incoming light, allowing astronomers to study celestial objects such as stars, galaxies, and planets. Large telescopes are essential tools for astronomers and play a key role in advancing our understanding of the universe. Some of the largest telescopes in the world are located at observatories in remote locations with minimal light pollution to ensure optimal viewing conditions.