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 ...

Watch: This photographer's footage of a double rainbow, as seen from a trail in the Golden Gate National Recreation Area, ...

Friends and family flew rainbow colored kites to commemorate to ... to return for the remainder of the day! Our mostly cloudy sky will give way to the sun by the late afternoon.