The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

Right now, Mars is a reddish desert landscape – attractive but dead, and certainly not home to any little green men.

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

The clouds, composed of carbon dioxide ice crystals, glow in shades of red, green, and pearlescent hues in the martian ...

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

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...

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

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings.

In this video, delicate red-and-green-tinted clouds are seen drifting through the Martian sky in striking patterns that look similar to the ones Earth clouds make. Studying how and where on Mars ...