Astronomy is the scientific study of celestial objects and phenomena in space, including stars, planets, galaxies, and other objects. It encompasses a broad range of scientific disciplines, including physics, chemistry, and mathematics.
Astronomers use a variety of tools and techniques to study the universe, including telescopes, spacecraft, and computer simulations. They seek to understand the properties, origins, and evolution of celestial objects, as well as the fundamental laws of physics that govern the universe.
Some of the key areas of research in astronomy include the study of the formation and structure of galaxies, the search for planets outside our solar system, and the investigation of the nature of dark matter and dark energy.