On the Red Planet’s northern hemisphere, there are frozen sand dunes that look just like kidney beans-but you definitely ...

With this amount of sand coverage, there’s still plenty of opportunity for the formation of vast dune seas, known as ergs.

I didn’t unpack the aircraft until we got out there and set up camp under the stars in the valleys between the dunes. Lake water percolates through the sand, so you can drink freshwater out of ...

All these sand dunes make up one of the largest sand dune ... a sheltered area develops behind it. The water isn't moving much here, so it deposits sand and silt, so mud flats or salt marshes ...

As sand dunes establish, plants start to form and grow ... Whenever humans interfere with natural ecosystems, the natural nutrient and water cycles are also altered. In addition, the natural ...

Their roots act to stabilize the sand. Healthy dunes covered in vegetation are normally harder to erode. But as beaches are washed away during large storms and the water level rises, larger waves ...