The Doctor of Earth wanted to create something so people would live apon he started by creating a person to assist him on creating earth called Noo-ee.
He created earth the first time but the people didn't find food and started eating each other so let the skyfall and killed them all.
After creating earth again people started getting old until babies are born with wrinkles and white hair.
After he destroyed and created earth again the people took another bad habit of smoking until babies started smoking
After he created Earth for the last and was successful the sun and moon got a child and he claimed to be their before his creators
The original creators of earth didn't want problems so they allowed him to be called the older brother