The Sun is the star at the center of our solar system, providing light and heat essential for life on Earth. It is a nearly perfect sphere of hot plasma, primarily composed of hydrogen and helium, and is about 4.6 billion years old. As the most prominent object in our sky, the Sun influences Earth's climate and weather patterns. Its energy drives photosynthesis in plants, forming the basis of the food chain. Understanding the Sun is crucial for studying space weather and its effects on technology and life on Earth.