Russian attack on Ukraine's western city of Lviv causes fires.

These five U.S. states sit near supervolcanoes that could one day erupt, with scientists monitoring these areas for signs of seismic changes that could trigger catastrophic geological events.

In a feedback of fire and ice, thinning ice sheets over geologic hot spots could allow more eruptions, while increased ...

There are places on this planet that feel less like corners of the Earth and more like fragments from a dream, or perhaps the ...