Physicists have solved a longstanding mystery around the process that creates volcanic lightning: when similar particles rub together, why do some become positively charged while others become ...

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 ...

Lightning could be used to estimate the height of an ash plume spewed by an erupting volcano, new research suggests. Subscribe to read this story ad-free Get unlimited access to ad-free articles and ...