An article published in the journal “Nature Astronomy” reports evidence of significant impacts on the primordial Moon, at least 4.33 billion years ago. A team of researchers carried out a study in particular on the sample cataloged as Troctolite 76535, taken during the Apollo 17 mission in 1972 and brought back to Earth. This specimen contains traces of cubic zirconia, a crystalline form of zirconium oxide that forms above 2370° Celsius, a temperature that could only be reached following violent impacts that could have contributed to the formation of the Moon’s surface.