The Dark Dune Spots and Spider Channels on Mars' North Pole

Some scientists have proposed that the geyser's most visible features, dark dune spots and spider channels may be colonies of photosynthetic martian micro organisms. A pocket of liquid water, which would normally instantly in the thin martian atmosphere, is trapped around them by the overlying ice. As this ice layer thins, the micro organisms show through gray. When the layer has completely melted, the micro organism rapidly dry out and turn black, surrounded by a gray oreole. The hungarian scientists believe that even a complex sublimation process is insufficient to explain the form ation and evolution of the dark dune spot in space and time.