Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with ...

A rare roll cloud was seen passing over several beaches in Portugal on Sunday, June 29. The phenomenon features a cloud that ...

The dark, tsunami-like cloud formation billowed across parts of Portugal’s northern and central coasts, as the country set a ...

Rare roll cloud phenomenon advances over the ocean like a giant wave, captivating onlookers and spreading rapidly online.

A rare roll cloud surprised beachgoers in Portugal amidst a severe heatwave, appearing along the coast on Monday. This ...

A record-breaking roll cloud, described as a massive ocean wave, rolled over the Atlantic during a heatwave in Portugal and ...

A rare roll cloud stunned beachgoers in Portugal as it swept across the sky during a heatwave. Watch the breathtaking moment.

People relaxing on Furadouro beach, south of the city of Porto, saw a huge cloud rolling in from over the ocean.

A striking 2015 satellite image has captured a rare meteorological phenomenon known as von Kármán vortices swirling off ...

Clouds play an important role in regulating the climate. Bright ones at low altitudes generally reflect solar energy away, ...

Altocumulus clouds over the Southern Ocean and Antarctic coast. Photos were taken by a forward-looking camera each day. The height and radiation indicated in each photo are the approximate cloud ...

The areas over the ocean where storm clouds form have dwindled by up to 3 per cent in the past two decades, new research led by NASA shows.