Image source: NASA/JPL-Caltech/ASU As one of the oldest star dunes we’ve discovered so far, Lala Lallia became a testing bed for scientists trying to learn more about how these peculiar sand ...

The researchers employed multiple methods to study the Lala Lallia dune. A radar capable of penetrating soil layers allowed them to differentiate between the sizes of sand grains and the water ...

This field of open, windswept sand — or erg — covers around ... The largest star dune in Erg Chebbi, Lala Lallia, is 330 feet (100 m) tall and is located slightly to the north (left) of ...