Astro Bob: Comet explosion may have forged Atacama's mysterious Pica glass
A comet detonating in mid-air over the Atacama Desert 12,000 years ago best explains the frothy glasses found near the town of Pica today.
Source: pineandlakes.com
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A comet detonating in mid-air over the Atacama Desert 12,000 years ago best explains the frothy glasses found near the town of Pica today.