One day, long long ago before humanity or even life existed, there were two planets that were far too close together in the universe, and every day they became closer together. They knew that one day they would clash, and they would have to fight for their spot in the universe, third planet from the sun. The two planets were named Earth and Clatania.
Finally, about five million years before humans arrived, the epic battle between the planets began. In the end, Earth won and took it's rightful place, third from the sun.
After Clatania was destroyed, pieces of the planet were scattered all over the universe. Some in the form of what humans now call stars, and some pieces were trapped inside planet Earth as clouds. The clouds were very unhappy, and began to cry. This caused plants and seas to grow on Earth. The stars shined as bright as they could, calling to the clouds, and the clouds floated up as high as they could to communicate with the stars, but they could not escape Planet Earth.
So these days, the clouds wander aimlessly in the sky, hoping to one day be reunited with the stars that shine brightly for them. So that they can once again join together and have Planet Clatania reborn. Then the planet would take vengeance on Earth.