PITTSBURGH (KDKA) - On beautiful days full of sunshine, sometimes some puffy clouds develop that look like cotton balls. These "fair weather cumuli" form because of certain atmospheric conditions. You ...

When the moon passes in front of the sun during a solar eclipse and ushers in an uncharacteristic darkness, nature tends to react. Birds cease their chirping. Buzzing bees return to their hives. And ...

GRAND RAPIDS, Mich. (WOOD) — Just because something floats doesn’t mean it is weightless. A great example is when oil is poured onto water. The oil will float on top of the water, but that doesn’t ...

Got your head in the clouds? Well, that's exactly where I want you. Clouds are fascinating to watch as they float through the sky. But what is even more intriguing is that their appearance can give ...

A weather system moving from the Ozark Mountains toward the Ohio River Valley could bring rain chances to southern Wisconsin ...