Ground-based telescopes are large optical devices located on the Earth's surface that are used to observe and study celestial objects such as planets, stars, galaxies, and other astronomical phenomena. These telescopes are equipped with mirrors and lenses that gather and focus light from space, allowing astronomers to capture images and collect data on distant objects. Ground-based telescopes come in a variety of sizes and designs, ranging from small portable instruments to massive observatories with advanced technology and capabilities. Some telescopes are stationary, while others are mounted on tracks or swivel bases to track the movement of objects in the sky. One advantage of ground-based telescopes is their ability to take advantage of advances in technology and upgrades to improve their performance and capabilities. Additionally, ground-based telescopes can be used in conjunction with space-based telescopes to complement and enhance the data collected from different vantage points. Overall, ground-based telescopes play a crucial role in advancing our understanding of the universe and are essential tools for astronomers in their research and discovery of new phenomena.