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 ...

Pattern formation is crucial for controlling fluid motion and spatiotemporal organization in living and synthetic active systems. While pattern formation in miscible fluid systems is typically driven ...

Images taken by the Mars Global Surveyor, now orbiting the Red Planet, suggest that most areas with geological features known as patterned ground appear at high latitudes, the same regions where large ...