Clouds look soft enough to grab from the ground. But what would happen if you actually reached one? The surprising answer may be something you’ve experienced many times.

It’s September, meteorological fall has begun, and a huge part of the country is roasting. Surely this is Indian summer, right? Probably not.

Think September means summer is over? Not so fast. From rapidly shrinking daylight to triple-digit heat and even snow, September has a few surprises left.

Meteorologists say fall begins September 1. Your sweating lawn chair may disagree. Here’s why weather has its own calendar and what really starts changing.

On August 27 and 28, Earth’s shadow will swallow about 96% of the Moon. The really fascinating part is what has to happen in space to make it possible.

Lightning can make glass, produce enormous red flashes above storms, stretch hundreds of miles and even be associated with antimatter. Here are five of its strangest tricks.

Hurricanes roam the Pacific every year, but actually hitting Hawaii is remarkably rare. Tropical Storm Lala is putting that history in the spotlight as it approaches the Big Island.

A 40% chance of rain doesn’t automatically mean cancel the soccer game, cookout or concert. Check these four things before deciding what to do.

Your weather app says there’s a 40% chance of rain. Forty percent of the day? Forty percent of town? Neither. Here’s what that little number is actually telling you.

Once a month, the Moon seems to vanish completely. But even at 0% illumination, half of it is still brilliantly lit by the Sun. So where did it go?