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Top Image:  This image is in the shape of the waist area of a human.  The sides are curved inward.  The top left corner is white with a few circles, which are craters.  Everything else in the images is darker hue due to the shadow cast by a crater wall. The middle area of the image is greenish-blue and has features that are jagged and steep that look like crevices of human molar teeth.  The bottom third of the image is flat and smooth compared to the rest of the image. Bottom Image:  This image is in the shape of the waist area of a human.  The sides are curved inward.   The base of the image is a deep red with a little brighter red in the upper right. Everything else is darker due to the shadow cast by a crater wall.  The middle area is pixelated with thick cloud-like shapes of blue that cover the red.  A few pixels of green dot the image in a small vertical line in the center of the image and to the far right, going up and down the image.
Full Res TIF (8.6 MB)

Seasonal Frost on Mars





The bottom image was constructed by measuring the depths of spectral absorption bands due to water frost and carbon dioxide frost, and displaying the results in image form. Blue shows strength of an absorption due to water frost near 1.50 micrometers, and green shows strength of an absorption due to carbon dioxide frost near 1.45 micrometers. Red shows brightness of the surface at 1.33 micrometers - outside of the frost absorption bands - in order to show the relationship of frost to the illuminated crater rim.


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