Stock image of a very dark cloud over a city. Istanbul was thrust into darkness on Tuesday as a heavy cloud rolled over the city, nearly blocking out the sun entirely for around 5 minutes.

A scary-looking cloud was spotted by many on hand for the Atlanta Braves game at Truist Park in suburban Atlanta on Tuesday night. But it wasn’t a tornado or even a sign of impending doom for ...

ATLANTA — Many of you saw this scary-looking cloud near Truist Park Tuesday night. Pictures and videos started circulating on social media with people claiming it was a developing tornado. Even ...

Your position relative to the cloud and where the sun is shining will also affect how dark a storm cloud appears. If you are viewing the cloud from the opposite side of the sun, it appears much ...

Rare clouds located on the edge of space have been spotted in the night skies over Washington state. Noctilucent clouds, silvery-blue tendrils that glow in the dark, are the rarest and highest ...

Now the telescope is giving astronomers clues about the formation of a new star, with a stunning image of an hourglass-shaped dark cloud surrounding a protostar, an object known as L1527.