Browsing: Sun

The Sun is the star at the center of our solar system and the primary source of energy for life on Earth. Composed mainly of hydrogen and helium, it generates energy through nuclear fusion, producing light and heat that drive Earth’s climate, weather, and photosynthesis. Studied in fields like astrophysics, heliophysics, and space science, the Sun influences everything from satellite operations to geomagnetic storms. Researchers closely monitor solar activity—such as sunspots, solar flares, and coronal mass ejections—to better understand space weather and its effects on Earth. As a dynamic and powerful celestial body, the Sun remains a key focus in the study of stellar physics and planetary habitability.