... than ever seen before and imply that the icecap not only is smaller than previously ... The north polar icecap is one of Mars' largest present-day reservoirs of water and ...
... cubic km (300,000 cubic mi.), or less than half the volume of Greenland's icecap ... had thought that the north polar cap, made largely of water ice, was a repository of ...
... As the storm began to abate, small local storms began to crop up again along the edges of the south polar cap, and ice clouds formed in depressions as the carbon dioxide cap continued to retreat. ...
... another to land on the frigid, barren steppe near the edge of Mars' south polar cap ... the structure of the atmosphere, detect surface ice reservoirs and dig for traces of ...
... According to Maria Zuber (NASA/Goddard Space Flight Center) and her colleagues, areas of the polar cap -- made primarily of water ice -- are very smooth, but the ice features kilometer-high mounds. ...
... ice, and measuring the time taken for the echoes to return to the satellite, the ... over the ice sheet, the team concluded that the interior of the Antarctic Ice Sheet ...