Scientists found strange patches of black and green glass in the Chilean desert. A new study attributes the glass to an exploding comet or comet-like object roughly 12,000 years ago. The ancient ...

Clusters of glass slabs scattered across the top of a small mound at the Puquio de Nuñez site in northern Chile.Schultz et al., Geology, 2021 Scientists found strange patches of black and green glass ...