NORFOLK, Va. — Spotting a cumulus cloud is pretty easy. The clouds resemble pieces of cotton candy, but why are cumulus clouds fluffy and not flat? To fully understand why, we need to start with ...

Fresh James Webb Space Telescope observations of exoplanet WASP-107b revealed sandy clouds high in its atmosphere.

Specifically, the disappearance of the fluffy stratocumulus clouds could inhibit some of the Earth’s ability to reflect sunlight back and cool itself, causing the climate to go “over a cliff ...