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Image: Mysterious South Pole formation on Mars

Astronomy and Space

Image: Mysterious South Pole formation on Mars

Credit: NASA/JPL-Caltech/Univ. of Arizona This observation from NASA’s Mars Reconnaissance Orbiter show it is late summer in the Southern hemisphere, so the Sun is low in the sky and subtle topography is accentuated in orbital images.

We see many shallow pits in the bright residual cap of carbon dioxide ice (also called ”Swiss cheese terrain”). There is also a deeper, circular formation that penetrates through the ice and dust. This might be an impact crater or it could be a collapse pit.
The map is projected here at a scale of 50 centimeters (19.7 inches) per pixel. [The original image scale is 49.7 centimeters (19.6 inches) per pixel (with 2 x 2 binning); objects on the order of 149 centimeters (67.3 inches) across are resolved.] North is up.
Explore further:Image: The splitting of the dunes
Provided by:NASA

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