Speeding around the Earth at 28,000 km/h, NASA astronaut Nichole Ayers captured an incredible view of a phenomenon known as a ...

Kelvin-Helmholtz clouds, often called wave clouds, develop when two layers of air with different densities move at varying ...

U.S. astronaut Nichole "Vapor" Ayers captured a spectacular view of a phenomenon known as a "sprite" blazing to life above an ...

NASA astronaut Nichole Ayers has shared an incredible image of a sprite, a rare weather phenomenon that's triggered high ...

Nichole 'Vapor' Ayers shared the photo of what is known as a Transient Luminous Event (TLE) seen above a thunderstorm over ...

A viral video making the rounds on social media shows beachgoers in Portugal encountering an enormous, tsunami-like cloud ...

Some Coloradans have noticed rainbow clouds over the past few days? This is actually a rare phenomenon called "cloud ...

A rare cloud phenomenon has been spotted and photographed by eagle-eyed reader Adrian Webster. He spotted these noctilucent ...

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 ...

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