A rare sequence of heating and cooling triggered the chain of chemical reactions that turn organic material into glass.

did scientists demonstrate that the unfortunate volcano victim’s brain, or parts of it, had literally turned to a glass-like material — vitrified — in a truly unique example of natural alchemy.

The Canadian-built Atacama Cosmology Telescope in the high Chilean desert mountains, which has just given up its final batch ...

It's common knowledge that Yellowstone Park sits on top of an ancient supervolcano, but what happened last time it erupted?

As climate change worsens due to the effects of greenhouse gas emissions in the atmosphere ... an influx of sulfur dioxide and aerosols into the stratosphere after major volcanic eruptions. These ...

For organic matter to transform into ... due to the eruption of Vesuvius. Modern volcanic eruption studies suggest that this initial surge of ash and gas briefly raised the victim’s body ...

Zavaritzki’s complex includes several cinder cones, which arise when gas-charged lava splatters ... sulfate aerosols. Historic examples, like the 1991 Pinatubo eruption in the Philippines, illustrate ...

“Obsidian glass forms when lava is very quickly cooled, for example, where it enters into water.” But the pyroclastic flows—fast-moving currents of hot gas and volcanic material—that ...