Geography
How Periglacial Patterned Ground Forms in High Latitudes
Quick fact
Patterned ground can also form on Mars, where periglacial processes have created polygonal ground in the absence of liquid water.
Why this is interesting
Have you ever seen the ground look like a giant honeycomb or a mosaic of stone circles? In the high Arctic, the barren soil is mysteriously arranged into perfect patterns—who built them?