Accordingly, potassium, thorium, uranium, oxygen, magnesium, aluminum, silicon, calcium, titanium and iron are in the top centimeters of the lunar surface. Some of these elements had already been detected in previous lunar missions. The better resolution of the instruments on Kaguya, however, now allowed a much more precise demarcation between the individual substances and an approximate estimate of the quantities.
The scientists were particularly interested in the distribution of uranium, potassium and thorium. Above all, these three elements seem to be common. They are particularly common in certain areas in the "Sea of Storms", the Oceanus Procellarum, which is located on the left side of the visible side of the moon. Also in the South Pole Aitken basin, which is considered as a possible reservoir of water ice, the radioactive elements seem to have accumulated, while they are rather rare in the high altitudes. This is especially true for the western ridges just above the equator on the side facing away from the earth. How much uranium is there exactly, but scientists can not say yet? For this, the data would have to be further processed and corrected.Noboyuki Hasebe (Waseda University, Tokyo) et al .: Journal of the Physical Society of Japan, Vol. 78, Suppl. A, p. 18 Naoyuki Yamashita (Waseda University, Tokyo) et al .: Post on the 40th. Lunar and Planetary Science Conference ddp / science.de? Ilka Lehnen-Beyel advertisement