On Fri, 17 Jul 2009 15:18:12 -0500, you wrote: >I suppose they're the lunar equivalent of tektites. Or like Nininger spheroids/spherules/spheres On a related note, anyone have a subscripton to Nature that could send me this article I just googled up? http://www.nature.com/nature/journal/v225/n5234/pdf/225717a0.pdf