Noctilucent clouds form at the edge of space, more than 80 kilometers above Earth, in the coldest part of the atmosphere.

"It's a beautiful cloud but not unusual," she said. "It's a nearly textbook cumulonimbus, or thunderstorm cloud." According to Gardner, "A front helped create a line of storms across the central part ...

When astronaut Chris Hadfield was asked last week what his favorite photo taken during the first three weeks of a stint on the International Space Station was, he answered simply. “I love the ...

If you didn't look up this afternoon or this evening you missed out on an atmospheric treat. A gorgeous batch of cirrocumulus clouds spread across the sky resulting in an epic sunset across the state.

Several rainbow clouds have been spotted in the sky above New Hampshire in recent days.The mysterious sightings left many pondering the story behind the clouds.The scientific term for the beautiful ...

A blanket of strange pock-marked clouds has been spotted by NASA satellites off the coast of Chile. A picture of the beautiful cloud formations taken in August last year was featured as NASA Earth ...

Have you ever looked up at the clouds and spotted a shape that looks like an animal, person or object? Klowdz is a new web app built in HTML5 that builds on the idea by letting you draw pictures on ...