Astronomy
Astronomy is the study of all phenomena beyond Earth's atmosphere, encompassing visible celestial bodies such as the Sun, Moon, planets, and stars, as well as distant galaxies and tiny particles that require observation through telescopes and other instruments. Additionally, astronomy explores the existence and properties of invisible substances like dark matter and dark energy. Through observation and theoretical analysis, astronomy aims to uncover the structure, origin, evolution, and physical laws of the universe, which are crucial for understanding the fundamental nature of the cosmos and advancing scientific and technological development.