Researchers found an approximate 98% percentage in the Earth also comes from ancient meteorites, which means that both planets had similar origins of the water fountains, the explanation is that water there at the time of the impact on the land, said Alberto Saal, Professor of geographical sciences of the University of Brown water that survived the tremendous impact and that is what we see in the moon. It 4,500 million years ago, a gigantic object hit the Earth, shedding minor pieces, from which the Moon is formed