An article published in the “Journal of Geophysical Research: Planets” reports the results of computer simulations generated to explain the asymmetry of the two faces of the Moon. A team of researchers used data from NASA’s GRAIL mission as a reference to try to reproduce the Moon’s situation, concluding that the best explanation comes from the simulation of the impact of a dwarf planet with a diameter of about 780 kilometers on the current Earth-facing Moon’s side at about 22,500 km/h.