Telescopes are powerful instruments that allow us to observe distant celestial objects, such as stars, planets, and galaxies. By collecting and magnifying light, telescopes enable astronomers to study the universe in greater detail. There are various types of telescopes, including refracting and reflecting telescopes, each utilizing different optical principles to gather light. The invention of the telescope marked a significant advancement in astronomy, leading to groundbreaking discoveries by figures like Galileo Galilei and Isaac Newton. Today, modern telescopes, including space-based observatories like the Hubble Space Telescope, continue to expand our understanding of the cosmos and reveal the mysteries of the universe.