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Although we knew dust devils existed on Mars, the Mars rover Spirit got the first real look at one in 2005.
Credit: NASA/JPL-Caltech/Univ. of Arizona
Here are dust devil tracks as they left their mark on the Martian surface.
Credit: NASA/JPL/University of Arizona
The rest of this gallery is made up of other recent photos from the HiRISE camera on the Mars Reconnaissance Orbiter.
This enhanced photo of the floor of an ancient impact crater shows layers of water deposited sediment.
NASA/JPL/University of Arizona