View Full Version : Why is Mars' Southern Polar Cap Crooked?

2008-Sep-22, 03:00 PM
Like Earth, Mars has frozen polar caps, but unlike Earth, these caps are made of carbon dioxide ice as well as water ice. During the southern hemisphere’s summer, much of the ice cap sublimates, or evaporates directly to a gas, but leaves behind what is known as the residual polar cap. The problem is that [...]

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