The Wind-Swept Clouds of Mars The Phoenix Lander look a series of photographs of the polar skies this week, and researchers have turned them into a short movie that gives you a shivery sense of what it would be like to stand under Martian skies. Those are ice water clouds, swooshing overhead very much the way clouds do on Earth. Now you can picture what it would be like to be there with Phoenix, with wispy clouds drifting overhead as you dig deeper into Martian permafrost in search of water. [The Great Beyond]