15 July 2016 

Slope Instability
Slope Instability
One small section of this image shows boulders that have rolled down the slope of a crater wall, with the largest one approximately 6 meters across.
Glorious Glacier
Glorious Glacier
This image has low-sun lighting that accentuates the many transverse ridges on this slope, extending from Euripus Mons.
Einstein and Mars
Einstein and Mars
In February 1917, Albert Einstein wrote in a letter: "It is a pity that we do not live on Mars and just observe man's nasty antics by telescope."
Mesas and Pits
Mesas and Pits
What's up and what's down? This image covers mesas, or high-standing plateaus, to the north and pits, or low-standing, depressions to the south.
Faulting Mars
Faulting Mars
This region of Xanthe Terra has mostly been contracted due to thrust faulting.
North Polar Gypsum Dunes in Olympia Undae
North Polar Gypsum Dunes in Olympia Undae
Unlike most of the sand dunes on Mars that are made of the volcanic rock basalt, these are made of a type of sulfate mineral called gypsum.
Colorful Bedrock in the Central Uplift of an Impact Crater
Colorful Bedrock in the Central Uplift of an Impact Crater
Large impact craters rebound from the initial shock, raising deep bedrock to the surface in the central uplift of the crater.
A Meandering Channel on Hellas
A Meandering Channel on Hellas' Rim
These gentle curves imply that a paleoriver carried lots of sediment along with it, depositing it into Hellas about 4 billion years ago.
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