Clouds need two essential ingredients to form, and both must be present simultaneously for the process to begin. There are two ingredients needed for clouds to form: water and nuclei. The first ...

Summer is a time when many weary and sleep-deprived amateur astronomers and skywatchers put their binoculars and telescopes into hibernation. Depending on your location, the night sky may not get dark ...

As a scholar researching clouds, I have spent much of my time trying to understand the economy of the sky. Not the weather reports showing scudding rainclouds, but the deeper logic of cloud movements, ...

Those lucky enough to be in the eclipse's path of totality are crossing their fingers for clear skies on Monday, hoping for the best chance to stand in complete darkness, oohing and ahhing as the moon ...

Forming 50 miles above Earth's surface, noctilucent clouds offer a rare glimpse into one of the least-understood layers of the atmosphere.

As a scholar researching clouds, I have spent much of my time trying to understand the economy of the sky. Not the weather reports showing scudding rainclouds, but the deeper logic of cloud movements, ...