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

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

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

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

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

NASA has shared a stunning views of drifting clouds on Mars captured by the Curiosity rover. The iridescent clouds look like ...

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