Are you wondering how many things are in our solar system? A lot of things are in our solar system. Our solar system is really neat. Solar means sun. When you say solar system you are really saying sun system. All the stars you see in the sky are actually suns in other solar systems. One solar system even has three suns. Our solar system has only one sun. Stars aren’t in our solar system at all. Planets are what orbit the sun. Hot asteroids or comets shout across the sky. The asteroid belt separates the inner planets from the outer planets. Moons belong to planets throughout the solar system.