Titan has sand dunes covering about 17 per cent of its surface ... by direct impacts of meteorites and comets on Titan. “This model might be crazy, but it is testable,” said Bottke.

Behind many of these beaches are sand dune systems which provide homes for diverse forms of wildlife including plants and insects, some so highly specialised that without these dune habitats ...

This story appears in the November 2012 issue of National Geographic magazine. I got my first lesson in the physics of sand dunes in 1998 on an expedition into the Sahara. In order to take aerial ...

A more than 40-mile long conveyor belt filled with sand stretches from the oil fields of West Texas to New Mexico, all for the purpose of one mission: oil production.