A rover got a new view of some peculiar extraterrestrial clouds, flecked in rainbow colors and moving across the Martian sky. Curiosity, a set of NASA's robotic "eyes" on the Red Planet ...

Kelvin Helmholtz clouds are named after the two scientists who studied the physics behind them A rare cloud formation resembling waves in the sky has been seen across North Yorkshire. The billowy ...

A photo supposedly showing a "fire rainbow" lighting up the sky above Alaska was shared to ... high-altitude cirrus clouds made up of hexagonal plate crystals." That article added: Sunlight ...

A rare cloud formation resembling waves in the sky has been seen across North Yorkshire ... Known as Kelvin-Helmholtz clouds, they form when a faster stream of air moves above rising air below.