Standing at 12,300 feet, Guatemala's Volcan de Fuego is among the most active in Central America and last erupted in June ...

In A.D. 79 a man's brain turned into glass, and researchers now might have an explanation as to how it happened ...

When Mount Vesuvius -- near the modern-day Italian city of Naples -- erupted in 79 AD, the cities of Pompeii and Herculaneum were buried in a fast-moving blanket of rock and ash called a pyroclastic ...

The research team used X-ray imaging and electron microscopy work out that the brain must have been heated to at least 510C before cooling rapidly. The pyroclastic flow is believed to have reached ...

Authorities were monitoring pyroclastic flows — fast-moving currents of hot ash, gas and rock fragments that descend the slopes of a volcano, Conred spokesman Laureano said. The state-run ...

Pyroclastic flow. Hot gas, ash and rock mixed together to make a deadly cloud that flows down the side of the volcano. It’s not all bad. They can also be tourist attractions! The lava and ash ...