NASA Curiosity Rover Snaps Photos of Iridescent Clouds on Mars

The NASA Curiosity rover has captured some stunning pictures of ice-filled clouds on Mars. Although these shimmery formations are rare to spot in the very thin atmosphere of the Red Planet around this time of the year, they made an appearance higher and earlier than expected. The phenomenon started to happen two years (or one Martian year) ago when researchers observed that clouds began to form earlier than the previous years. According t...