... feet) across the polar cap and is equivalent to a 60 centimetre thick global layer of ice. "This suggests that we have indeed identified the record of the most recent Martian glacial period and the regrowth of the polar ice since then. Using these...
... is long gone - on the surface at least. Water ice and possible carbon dioxide ice does exist at the martian poles however and the presence of liquid water at the base of the polar ice caps has long been suspected. Indeed if the water...