Additional photos of the rainbow clouds were taken by photographer Fredrik Broms, showcasing a colorful series of lights in the sky near Tromsø in Norway. Both sets of photographs can be viewed o ...

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the rover's Mastcam, which NASA's Jet Propulsion Laboratory compared to the rover's ...

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars.

Dennis Fast / VWPics/Universal Images Group via Getty Images) When a veil of clouds drapes the sky, be on the lookout for sun dogs -- pieces of rainbows that glow to the left and right of the sun.

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...