there are huge dossiers of paperwork of where every piece has been, who it was sent to, if itappened, returns, -- has been returned. process is audited every couple years. it's a painful process. all of the paperwork is kept like that. there are samples that have never been touched. they're called pristine samples for various reasons. are two ofar, there drilled intot were the surface of the moon, then extracted as a stack of material. they have been kept in the tubes, without ever being opened. they have an x-ray. x-rayed. the material itself has not been examined. some of the other cores were examined. andd people who sat there, i know people who took the tube, cut it in half, related. it with half, covered epoxy to preserve it. took the other half, and with tweezers, picked out tiny pieces every couple of centimeters or two or three meters,. tedious work to understand the layering under the surface of the moon. years, there have been some breakthroughs in the analysis of the lunar sample, which imply there was more water involved in the formation of the moon and was thought in the