Our Solar System | Home of 8 Planets Our solar system is made up of the Sun, 8 planets, their moons, and countless asteroids, comets, and space rocks. At the center is the Sun, a giant star that gives us light and energy. The planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune each have their own unique features. From the rocky surfaces of Mercury and Mars to the gas giants like Jupiter and Saturn, every planet tells a story of cosmic history. Even though our solar system f