Another crop circle has appeared in the English countryside — and this one's clearly been made by someone, or something, that understands math. At first glance, the strange ratcheted pattern, ...

Patterns appearing on both the very large and very small scale are extremely rare, but researchers have found a similar pattern in two apparently unrelated systems -- skin cells and fairy circles in ...

Perfect circles of stones cover the ground in parts of Alaska and the Norwegian islands of Spitsbergen. Elsewhere in the far north, stones form other striking patterns on the ground: polygons, stripes ...