When you buy through links on our articles, Future and its syndication partners may earn a commission. Colorful sprites, or transient luminous events, flash above clouds in a video taken by NASA ...

I and my family have seen colored lightning, and it was quite spectacular. What is the explanation? What causes it? —James Maso and family, East St. Louis, Ill. Dear James and family, There are at ...

A string of strong thunderstorms rumbled through the High Desert before sunset Thursday evening, presenting a dramatic panorama many of you have shared with us. Friday night, storms moved through ...