An astronomical satellite is a satellite specifically designed to observe and study celestial objects and phenomena in outer space. These satellites are equipped with specialized instruments, such as telescopes and cameras, that allow them to collect data on stars, galaxies, planets, and other astronomical bodies. Astronomical satellites play a crucial role in advancing our understanding of the universe, as they can observe objects and events that are difficult or impossible to see from Earth due to atmospheric interference or limited visibility. These satellites can also provide valuable information on the composition, behavior, and evolution of celestial bodies, helping scientists to further explore and unravel the mysteries of the cosmos.