clouds

Clouds look light and fluffy, but they're surprisingly heavy.

A new time-lapse video shows an unusual banner cloud, known locally as "The Levanter," forming on the peak of the Rock of Gibraltar.

A satellite image captured by Landsat 8 shows Mount Vesuvius "peering" through an eerily circular hole in the clouds.

Satellite images released by NASA's Earth Observatory show concentric rings of clouds forming above the erupting volcano on La Palma in the Canary Islands.

Earth is reflecting less light as its climate continues to change, new research suggests.

A NASA-funded study is giving scientists insight into how "night-shining clouds" form in the upper atmosphere — and the role that growing space traffic plays in the phenomenon.

Lenticular clouds look like saucers and form when wind meets mountains. This photo is one of the Royal Meteorological Society's favorites of the year.

Atmospheric scientists sampled the most pristine air on Earth, just above the Southern Ocean. They found some surprises.

Satellite passing overhead can see an entirely different canvas of clouds.