This image was downloaded off of NASA's website and has the same permissions as other images on this wiki topic (en:Opportunity rover). This image has been cropped and has had missing sky pixels filled in.
The image is based on an approximate true-color mosaic based on multiple frames taken through color filters. The color is approximate because the red filter is actually an infrared filter, which is used more often than a true red filter by the rovers for its scientific value. The rovers do have a red filter, but due to the limits of data transmission from Mars, it is often not used. Some suggest that the actual sky color would have a bit more orange in it if a true red filter was used.
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