NASA's Curiosity Rover Captures Colorful Clouds Drifting Over Mars

While the Martian clouds may look like the kind seen in Earth's skies, they include frozen carbon dioxide, or dry ice. Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its Mastcam -- its main set of "eyes." Taken over 16 minutes on Jan. 17 […]