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 dramatic volcanic eruption on a remote island in Indonesia's North Sulawesi province on April 17 threw a fiery-red column of lava, incandescent rock and ash as much as 3 km (2 miles) into the sky.
An analysis of volcanic rocks has revealed large quantities of nitrogen compounds that were almost certainly formed by volcanic lightning. This process could have provided the nitrogen required for ...
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