I've been reading in on space, time, physics, etc.

Everyone really doesn't know what people mean when they say. "Could God be the unknown factor in the universe?" You very well probably know this object of which they speak of. When you look out in space you probably might wonder at some point, why don't the planets pull at each other causing them to crash into each other. Also why is the universe actually moving away from itself not closer? You all probably know some dude from Germany name Albert. Now he believed that there was some unknown factor in the universe. He call this factor the "x" factor. Over time this factor became to be known as Dark Matter. So the unknown factor in the universe is Dark Matter. Dark Matter does amazing things in the universe such as far as we believe makes it so that the planets moving around the sun don't suddenly make a B line toward the sun and burn. The Dark Matter is more dense is some areas. So the Gravity pull from the Sun is pulling the Earth and other planets toward it, but we are taking the path of least density of Dark Matter, while keeping the circle movement around the sun.



Source: A Briefer history of Time