Special, Unopened Lunar Samples: Is it Time to Examine Them?

Introduction: During the last three missions to the Moon several samples were collected and immediately placed in a vacuum tight-containers. Three of these samples have never been opened and, together with 2 samples not placed in vacuum, are the only lunar samples that have not been examined, Table 1. There were, however, samples collected immediately adjacent to many of these samples that have been studied. Because there was nothing notable about these samples, there was no compelling reason to open these samples, and it was decided that they be preserved for future studies. The purpose of this abstract is to remind the science community of their existence and to open a discussion as to whether this is an appropriate time to study one or more of these samples.