Astronomy is the scientific study of celestial objects, space, and the universe as a whole. It involves the observation and analysis of phenomena beyond Earth’s atmosphere, including stars, planets, moons, comets, galaxies, and the cosmic background radiation. Astronomers utilize various tools, such as telescopes and satellites, to gather data and develop theories about the physical laws and principles governing the cosmos. The field explores the origins, evolution, and ultimate fate of celestial bodies, as well as the fundamental questions about the nature of the universe, such as its composition and the possibility of extraterrestrial life. Astronomy is considered one of the oldest sciences, with roots tracing back to ancient civilizations that observed and recorded celestial movements. The discipline encompasses various subfields, including planetary science, astrophysics, cosmology, and observational and theoretical astronomy, contributing to our understanding of the universe’s structure and dynamics.