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Over the course of years and numerous freeze-thaw cycle, the ice needles gradually nudge any stones around until they clump together, a University of Washington researcher explained.
In rocky, frosty landscapes, specific patterns of stones can end up forming – it's like human hands have formed them, but without any gardener being anywhere near them. A new study shows how these formations can be created with needle ice – spi
Circles of stones in Svalbard, Norway. Each circle measures roughly 10 feet, or 3 meters, across. New research provides insight into how these