Ryan True-Richardson took this photo in the Valley of a large lenticular cloud that formed in the late afternoon ...

What caused the mysterious spaceship-like cloud that loomed over Melbourne as dawn broke on Tuesday morning? Video producer Sue Roberts was quick to get her camera out when she saw the strange ...

A reader in Moline wants to know about something he's heard referred to as ``UFO clouds.'' It might sound strange, but there is a well-known cloud formation, altocumulus lenticularis (meaning ``high, ...

It looks like a craft from another galaxy, but this is actually a huge cloud floating above China. It was spotted over Xiamen city in Fujian province – and the photographer caught the moment an ...

We stare at clouds all the time, whether trying to figure out what they look like or if they're bringing rain. Yet most of us know very little about clouds, let alone how to identify them. The World ...

In this absolutely fabulous image, taken by Alessio Andreani, the moon can be seen rising over the snow-capped peaks of Mount Redentore, a member of the Aurunci Mountains in South Pontino, Italy. Also ...