In geology, honeycombs are an intriguing pattern of small cavities on rock surfaces found in coastal regions, wet areas, deserts, and even on Mars. They are fascinating to look at in natural objects and a bane of historic buildings and monuments. Despite a hundred years of research, scientists are still not sure how honeycombs come about.
Click here for original story, Computer simulation explains mysterious rock patterns seen from Czech Republic to Mars
Source: Phys.org