Heliophysics is the study of the Sun and its interactions with the solar system, including Earth. It explores how solar energy and particles affect our planet's atmosphere, climate, and space weather. Understanding these processes helps scientists predict events like solar flares and coronal mass ejections, which can impact technology and communication on Earth. This field combines aspects of astronomy, physics, and space science to investigate the Sun's behavior and its influence on planetary systems. By studying the Sun, researchers can gain insights into fundamental processes that govern not only our solar system but also other star systems in the universe.