The sun

The sun is a massive, luminous ball of hot plasma at the center of our solar system. It primarily consists of hydrogen and helium and generates energy through nuclear fusion, where hydrogen atoms combine to form helium, releasing a tremendous amount of heat and light. The sun's surface temperature is about 5,500 degrees Celsius (9,932 degrees Fahrenheit), while its core can reach temperatures exceeding 15 million degrees Celsius (27 million degrees Fahrenheit). It provides the energy that sustains life on Earth through the process of photosynthesis and plays a crucial role in our planet's climate and weather patterns.