The traditional theory that two atoms/ matter/ electrons collided together and caused a enormous explosion. Due to this explosion dust was created that the began to settle around the universe. It was spun into action with the right chemistry to create the sun, then dust collected in balls and got caught within the gravitational pull of the sun and became what we know of as our planets... This is known as the Big Bang theory, brought about by Charles Darwin, who invented the rest of the theory of evolution.