Solar System
The Solar System is full of planets, moons, asteroids, comets, minor planets, and many other thrilling objects. Everything in the solar system revolves around the sun. The Sun contains around 98% of all the material in the Solar System. The larger an object is, the more gravity it has. Because the Sun is so large, its powerful gravity attracts all the other objects in the Solar System towards it. At the same time, these objects, which are moving very rapidly, try to fly away from the Sun, outward into the emptiness of outer space.