Lightning research deepens understanding of sprite formation

A new study has improved our understanding of a curious luminous phenomenon that happens 25 to 50 miles above thunderstorms. These spectacular phenomena, called sprites, are fireworks-like electrical discharges, sometimes preceded by halos of light, in earth’s upper atmosphere. It has been long thought that atmospheric gravity waves play an important role in the initiation of sprites but no previous studies, until this team’s recent findings, provided convincing arguments to support that idea. —> Read More