Researchers have created geopolymer mortar blocks from Taal volcanic ash, potentially suitable for constructing ...

Engraved with concentric circles and solar rays, Vasagård's “sun stones” may have been made and ... dragged into a dark volcanic winter sometime around 2,900 B.C.E. This was after a destructive ...

Hundreds of stone artifacts discovered on a Danish island may have been offered to the gods to ward off a climate crisis. A volcanic ... plaques were made from black shale — a dark, flaky ...

The volcano, standing at 3,763 meters in height, is expelling dark ash and “abundant rock fragments,” with rumbling sounds audible in nearby localities, according to the official report. In recent ...