Sol is the name of the Sun in our solar system. It is a massive ball of hot plasma, primarily composed of hydrogen and helium. Sol provides light and heat, making life possible on Earth and influencing the orbits of planets, including Earth, Mars, and Venus. Sol is about 4.6 billion years old and is classified as a G-type main-sequence star. It generates energy through nuclear fusion, converting hydrogen into helium in its core. This process releases enormous amounts of energy, which radiates out into space, sustaining the solar system and driving weather patterns on Earth.