The center of the solar system is the Sun. The Sun is a star located approximately 93 million miles away from Earth and contains more than 99% of the solar system's total mass. Its immense gravitational pull keeps the planets, including Earth, in orbit around it. The Sun generates energy through nuclear fusion, converting hydrogen into helium, which produces the heat and light that sustain life on our planet. Understanding the Sun's behavior is crucial for studying various astronomical phenomena and for maintaining satellite operations and communication on Earth.