Apollo lunar samples

Both wet chemistry and X-ray fluorescence require relatively large samples, typically at least a gram. As scientists prepared for the arrival of the Apollo lunar samples, they developed... 

Ar on the Moon An early puzzle when the Apollo lunar samples were returned was the large amount of 40Ar in the lunar soil. Since the Moon has no appreciable... 

The Apollo lunar samples have provided the first opportunity for the analysis of material collected from an extraterrestrial body under carefully controlled conditions. No definitive evidence about the concentration and nature of lunar carbon was provided by the a back-scattering experiments carried out by the Sureveyor unmanned landers. However, these remarkably successful experiments did indicate a magmatic origin for the samples analysed1"3. This was confirmed by the Apollo missions, three distinct samples types being collected from the lunar regolith ... 

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