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originally posted by: onebigmonkey
A source would have been good, so I found one:
and here's another with some info as to how it was processed:
The repeated rock is there thanks to the rover moving slightly along the rock face to capture the images - the foreground changes but the relatively distant background stays roughly the same.
Not sure about the blurring effect, but as the images are processed on board I would say they are a product of the software trying to deal with a sharp boundary between the sharp foreground and blurred background.
Other one's obviously an alien with a laser pen.