In space, all objects are in orbit of something. Satellites both manmade and natural orbit planets and moons. Moons orbit planets. Planets orbit stars, and stars orbit the center of galaxies. An orbit is the elliptical path an object follows when affected by gravitation. Basically that means that gravity from a big object such as a planet, pulls a smaller object, such as an asteroid, towards it, and as a result, the asteroid circles it. Why do objects in orbit circle the body that they are