Seismic activity persists at Mount Spurr, which scientists said could mean the Alaska volcano is poised for a possible eruption.

The four-propeller drone sitting briefly on a rocky and dusty surface in Central America in early March had an impressive diameter of nearly 7 1/2 feet.

When volcanoes like Alaska’s Mount Spurr erupt, the ash can damage people’s lungs, smother crops and kill animals, and the harm can continue to spread long afterward.

Ash from the 1912 Novarupta eruption periodically hits the west side of Kodiak Island, Larsen Bay and Karluk, roughly 65 ...

The AVO predicts this eruption will be similar to those in 1953 and 1992, which saw,' one or more explosive events, each lasting as long as a few hours, would produce ash clouds carried downwind for ...

The Alaska Center for Unmanned Aircraft Systems Integration (ACUASI) provided the team and equipment for the drone volcano mission. This marked the group’s first drone flight into an active volcanic ...