About
This intriguing, almost cartoon-like terrain is composed of coalescing pits and smooth-topped mesas, forming part of what is known as the Residual South Polar Cap (RSPC) of Mars. The RSPC is a permanent deposit of carbon dioxide (dry) ice that is several kilometers thick and overlies a much larger water ice cap. This part of the RSPC lies at an elevation of about 6.5 kilometers. The mesas are several kilometers long while the pits range in diameter up to several hundred meters. The dark regions surrounding the mesas are thought to be exposed water ice. This image was taken during southern summer when the brighter-appearing dry ice cap sublimates (evaporates directly from ice to vapor) exposi — NASA JPL · 2021. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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