Dunes develop when wind-blown sand organizes into patterns, most often in deserts and arid or semi-arid parts of the world. Every continent on Earth has dune fields, but dunes and dune-like sand ...

Depressions such as impact craters can act as traps for sediments that have been blown in from elsewhere, accumulating in various patterns whipped up by strong winds. The dune field in this unnamed 48 ...

Scientists have devised a new way to study winds on Mars by examining sand dunes on the planet’s surface. The resulting wind map could help explain recent changes in the martian climate and provide ...

Two types of wind-blown sedimentary deposits are pictured in this scene of the floor of Ius Chasma in the Valles Marineris. Smaller light toned ridge-like ripples draped over the bright bedrock are ...