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

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

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

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

Extreme sea ice loss in Antarctica over the past few years is leading to higher ocean temperatures, more icebergs and habitat ...

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

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

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

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

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

A 2015 satellite photo captured a series of stunning "von Kármán vortices" swirling off Madeira and the Canary Islands. The ...