astronomical observation

Astronomical observation is the practice of studying celestial objects like stars, planets, and galaxies using telescopes and other instruments. This can be done from Earth or space to gather information about their properties, movements, and interactions. Observations help scientists understand the universe's structure, origins, and evolution. Methods include visual observations, capturing images, and analyzing light from these objects to reveal their composition and distance. Astronomical observation has led to significant discoveries, such as the expansion of the universe and the existence of exoplanets, deepening our understanding of the cosmos.