A “roll cloud” spotted off the coast of Portugal looked like something out of a movie. Here’s the science behind it.

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

Scientists are venturing to the Southern Ocean to study clouds and the world's cleanest air to better understand climate change and the impact of human activity on the Earth's atmosphere.

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

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.

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.

Daredevil Jules Mountain has long loved the high life. But five years ago after surviving an aggressive form of cancer, he ...

A disturbance is expected to stall late this week over Florida and currently has a low chance for tropical or subtropical ...

Puffy cumulus and drab stratus are mainstays in the scenery of our everyday life, but there are some extraordinary clouds that lurk above our heads on a regular basis.

A disturbance is expected to stall late this week over Florida and currently has a low chance for tropical or subtropical ...