The picture below is a panorama mosaic taken by the Phoenix Mars Lander spacecraft on Mars showing the midnight sun over a period of several days.


During eleven days, the path of the sun dropped lower over the northern horizon of Mars, captured by time-lapse images and composed into this mosaic. The arc in the picture is indicative of the polar nature of the Phoenix mission.

Phoenix has now been on Mars nearly 60 days. A set of imaging commands will soon be initiated to check a northwestern piece of the Martian horizon in early afternoon looking for dust devils, which are fairly prevalent on Mars. This will represent the first time Phoenix has systematically searched for dust devils. It appears to me that the resolution of the Phoenix camera is so good that any dust devils captured should make for very interesting photographs.

Image credit: NASA/JPL-Caltech/University of Arizona/Texas A&M University