Looking at dunes and other rock formations on both Earth and Mars can tell scientists the environmental conditions that ...

Measuring sand patterns in person The shapes and patterns of aeolian bedforms can reveal the environmental conditions that created them. Two sizes of the same bedform, such as small dunes on top ...

We were looking for coarse-grained sand ripples, which are patterned piles of sand shaped by wind. Sand ripples and sand dunes are types of aeolian bedforms, which are wind-created geologic features.

After making decent – if bumpy – progress, we pulled off onto the sand flats and drove slowly toward the dunes, worried we might get stuck in the sand. Having arrived on the outskirts of the ...

After making decent – if bumpy – progress, we pulled off onto the sand flats and drove slowly toward the dunes, worried we might get stuck in the sand. Having arrived on the outskirts of the ...