The ripples suggest that the lake was free of ice at one point.

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

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

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

NASA’s Curiosity rover captured stunning twilight images of Martian clouds, revealing iridescent red and green tinges. These ...

NASA's Curiosity rover photographed remnants of rippling waves in an ancient Martian lakebed, proving that the Red Planet had ...

NASA's Curiosity rover captures stunning images of Martian twilight clouds, shimmering in red and green hues, revealing ...

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

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

"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 ...