A meteorite the size of Rhode Island crashes into the Moon and creates Mare Imbrium, the largest crater on the Moon’s near side (NW side); the impact distributes radioactive thorium over a large area of the Moon’s near side; this area will turn out to be (1999) the only area with radioactive residues on the entire celestial body and, by chance, it was the target of the sampling of material by all the Apollo missions, in particular the Apollo 12 and Apollo 14 missions which took samples from the most radioactive points on the Moon.
