Ask AI: What's the sun

The Sun is a massive, luminous ball of plasma, primarily composed of hydrogen and helium. It is located at the center of our solar system and serves as its primary energy source. The Sun's gravity keeps the planets, including Earth, in their orbits. The energy produced by the Sun comes from nuclear fusion, a process in which hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the form of light and heat. The Sun plays a critical role in sustaining life on Earth, as it provides the energy needed for photosynthesis in plants and maintains the temperature required for habitability.