Editing Solar system (section)

=== The Sun ===
The Sun is the central and most important part of our Solar System. It is a medium-sized star that provides light and heat to all the planets and makes life possible on Earth. Without the Sun’s energy, our planet would be a cold, dark, and lifeless place. The Sun is composed mainly of gases. About '''74%''' of its mass is '''hydrogen''', and around '''24%''' is '''helium'''. The remaining small percentage includes heavier elements such as oxygen, carbon, and iron. These gases are held together by the Sun’s powerful gravity, which also keeps all the planets in orbit around it. The Sun produces energy through a process called '''nuclear fusion''', which occurs at its core. In this process, hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the form of light and heat. The temperature at the Sun’s core reaches nearly '''15 million degrees Celsius''', while the surface, known as the '''photosphere''', has a temperature of about '''5,500 degrees Celsius'''.

This energy travels through space and reaches Earth in about eight minutes, providing the sunlight that drives weather, supports plant growth, and maintains life. Although the Sun appears stable, it constantly changes through solar flares and sunspots, which are caused by magnetic activity. Scientists study the Sun using satellites and telescopes to better understand its behavior and its influence on the Solar System. In short, the Sun is not just a star it is the life-giving heart of our entire Solar System.