Optical astronomy is the study of celestial objects using visible light. This branch of astronomy relies on telescopes to collect and analyze light from stars, planets, and galaxies. By observing this light, astronomers can learn about the composition, distance, and movement of these objects in the universe. Telescopes, such as the Hubble Space Telescope and ground-based observatories, play a crucial role in optical astronomy. They enhance our ability to see distant objects and gather detailed images. This information helps scientists understand the formation and evolution of the universe, as well as the physical laws governing celestial phenomena.