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December 2, 2013 04:16 pm PST
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/wrVPDfdNUIQ/story01.htm
A new theory on the origins of desertglass
Libyan Desert Glass is opaque, greenish glass formed when the desert sands fused in some sort of extremely hot incident. (Alternately, Sandman Volume 2 Number 9 proposes that the glass is the remains of an ancient city.) What, exactly, created the heat that made the glass is a source of scientific debate, but a new paper suggests it might have been the result of a comet impact.Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/wrVPDfdNUIQ/story01.htm
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