Colorful Water Clouds Over Mars . ... Credit: Viking Project , USGS , JPL , NASA Explanation: One place where water can be found on Mars is in clouds . In the above picture colorful water clouds are visible just after sunrise in and around a maze of canyons known as Noctis Labyrinthus (the labyrinth of the night). ... One exciting possibility is that water sometimes condenses in shaded regions of the canyon s, only to evaporate into clouds when exposed to the morning Sun . ...