partial view of the northern polar ice cap. The northern polar cap is believed
to be composed of mainly water ice.
close-up of the north polar cap. The stratification seen in the steep walls
of ice are believed to be related to seasonal variations in the extent of the
ice sheet. The layering found here may provide clues about the history of Mars'
Fossae and Tempe Fossae; both of these fracture features extend radially away
from the Tharsis bulge which out of the frame to the southwest. Kasei Vallis
is out of the frame to the south.
partial view of Acidalia Planitia. Chryse Planitia is out to the frame to the
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