The moon’s orbit around the earth is expanding every year. It is getting further away. Going back in history, 1.2 billion years ago the moon would have been touching the earth. Even if not, if it had a low orbit there would have been serious trouble. As the moon’s orbit around the earth causes tides, had the moon been very close at one time, the tides would have been extremely high. So high in fact they would have destroyed the earth’s continents with their force and no life could have evolved. Likely the moon is not near as old as some scientists predict.