ArticlesOther Physical Properties

Surface Properties of Lunar Samples

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Science  30 Jan 1970:
Vol. 167, Issue 3918, pp. 743-745
DOI: 10.1126/science.167.3918.743

Abstract

Fine-grained samples disrupted after exposure to oxygen and oxygen with 3.5 percent water above 2 torr. Chemical etching revealed plastic deformation in some samples, adhesion due to impact melting in others, dislocations in crystalline phases and evidence that some glasses were partially devitrified. Specimens of rock that were fractured in ultrahigh vacuum exhibited a time-dependent adhesion and a network of localized electrostatically charged areas.