Sun

The Sun is the star at the center of the Solar System, around which the Earth and other celestial bodies orbit. It is a nearly perfect sphere of hot plasma, primarily composed of hydrogen and helium. The Sun provides the necessary light and heat that sustain life on Earth. It generates energy through nuclear fusion, a process in which hydrogen atoms combine to form helium, releasing vast amounts of energy in the form of light and heat. This energy is essential for climate systems, photosynthesis in plants, and the overall dynamics of Earth’s environment. The Sun has a significant impact on atmospheric and oceanic processes and influences the patterns of weather and climate. It has an average diameter of about 1.4 million kilometers (about 864,000 miles) and is approximately 4.6 billion years old. The Sun’s gravitational force also governs the orbits of the planets and other objects in the Solar System.