Fluffy, gloomy, wispy or threatening, clouds put on an ever-changing pageant, right above our heads.

Noctilucent clouds - formed 76 to 85 km above Earth - are becoming more frequent and visible further south. These shimmering ...

Tuesday evening, if you happened to be looking up, you may have seen some rainbow-esqe clouds high in the sky.

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

On Wednesday morning over the Florida sky, we got to witness this amazing glow due to increased water vapor from a Space X launch. The noctilucent clouds were visible well before the first ...