Last week, Loeb and colleagues, including Prof. Stein Jacobsen of Harvard University and Dr. Roald Tagle from Bruker Corporation published two technical articles on the analysis of a sample of 850 balls. On the one hand in the “Research Notes of the AAS” (DOI: 10.3847/2515-5172/ad2370 ) , and on the other hand for the “ 55th. Lunar and Planetary Science Conference ” ( LPSC ).