When you watch thunderstorms pass, they don’t appear to move very quickly. But when they are photographed over time and then compressed in a video editor, you really get to see how things move. The ...

The Ventura County Fire Department captured a dramatic time lapse of a collapsing pyrocumulus cloud, or "fire cloud," on Dec. 11 while fighting the fierce Thomas Fire.Fire clouds behave similarly to ...

An interesting phenomenon unfolded Monday in the sky over Houston as nearly perfect rows of clouds were spotted. Video submitted to us by a subscriber showed the unmistakable appearance of what are ...