Moon rocks dating

Moon rocks on Earth come from three sources: those collected by the US Apollo manned lunar landings from 1969 to 1972; samples returned by three Soviet Luna unmanned probes in the 1970s; and rocks that were ejected naturally from the lunar surface by cratering events and subsequently fell to Earth as lunar meteorites.During the six Apollo landing missions, 2,415 samples weighing 380.96 kilograms (839.87 lb) were collected.They undoubtedly exist, but the probability of finding a lunar meteorite in a temperate environment is incredibly low.Many experienced meteorite collectors have been looking and none have yet succeeded.

Geochemists Patrick Boehnke and Mark Harrison of UCLA took a second look at the data.None of the many samples that we have been sent has been a lunar meteorite, except those from meteorite dealers, persons who bought lunar meteorites from a dealer, or experienced meteorite prospectors who found them in the deserts of northern Africa or Oman.No lunar meteorite has yet been found in North America, South America, or Europe.The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted so long as the latter page exists.Surely the collected rocks are the source of knowledge of the rocks on the actual moon, but I don't suppose "moon rock" can be defined as rock collected from the moon.