Orbital Change

The Earth orbits around the sun, we all hopefully know that, it was discovered way back when. Anyways, the Earth does orbit, but not in a perfect circle, it's more of an ellipse. According to the law of gravity, an ellipse is not the perfect shape, a circle, or sphere is.

As the Earth Orbits, it will eventually fall out of its elliptical orbit because of the pulling of other planets and centrifugal force acting on it. it will try to turn into a perfect circle. if a perfect circle is to be made, we either need to move farther away from the sun, or move in closer.