Volcanic lightning looks surreal: an arc of light rises from the volcanic crater, stretching out into the murky skies. Although scientists knew what caused such frightening yet beautiful phenomena, ...

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 ...

The eruption of Hunga Tonga-Hunga Ha'apai produced one of the most extreme lightning storms ever and it has given scientists a unique glimpse into the volcano's secrets. Peeking out of the South ...