Winds blowing over a dune can move grains of sand in three main ways. What path these grains take depends on their size, although the exact size in each category can change from site to site. Think of ...

"We can see evidence of sand dunes moving right in front of us, but what's fascinating is their movement is all down to the hidden flow of water currents or wind patterns," said Bacik, "You can't see ...

New studies of ripples and dunes shaped by the winds on Mars testify to variability on that planet, identifying at least one place where ripples are actively migrating and another where the ripples ...

Martian sand dunes are blowing in the wind — but slowly, and based on factors that don't affect sand movement here on Earth. Scientists tracked the movement of nearly 500 individual dunes, all using ...

HiRISE has been carrying out a dedicated survey of sand dunes on Mars, determining whether and how fast the dunes move by observing repeatedly at intervals of Martian years. More than 60 sites have ...

Last summer, Stephanie McNamara got her first glimpse of Great Sand Dunes National Park and Preserve in southern Colorado. The park is a monument to sand, where dunes stretch across 30 square miles ...

Dune formation across the solar system is influenced by varying atmospheric conditions, gravity, and surface composition, resulting in diverse dune morphologies and sizes. This variation allows for ...

Cambridge scientists have used downscaled laboratory models to show how sand dunes move through a landscape, revealing the conditions that determine whether they will pass through hurdles in their ...