Volcanic lightning is a striking and multifaceted phenomenon that occurs during explosive eruptions, when vigorous interactions between fragmented ash particles, volcanic gases and environmental ...

Triggered by lightning in thunderstorms, whistler waves are radio waves that are channelled thousands of kilometres around the world via ducts in the magnetosphere. As Ian Randall reports, these ...

In the midst of a volcanic eruption, lightning can streak across the ash and smoke above it, but what do we think causes ...

An image of Augustine erupting on January 13, 2006, from about 50 miles away from the volcano. Courtesy of Gerald Andrew When Mount St. Augustine in Alaska erupted in mid-January 2006 for the first ...