NASA's MESSENGER mission has revealed that Mercury, the solar system's tiniest planet and the closest to the sun, hides a big secret. When you purchase through links on our site, we may earn an ...

Low clouds fill the valleys and hug the beaches Monday morning. It will be a cool and gloomy day as clouds are slow to dissipate. With some stubborn clouds, temperatures will be slow to warm and it ...

A vast belt of dense radiation fog has turned a huge slice of California into a low-visibility maze, trapping millions of residents in what amounts to zero-vision conditions from the farm roads of the ...

If you've ever been in a coastal area, you may have experienced a marine layer. A marine layer is a dense, cool layer of air trapped near the ocean’s surface beneath a warmer layer of air above. It ...