DUCK, N.C. — On the Outer Banks, sand is a valuable resource. Millions of dollars every year go into making sure there’s enough sand in the dunes to keep infrastructure intact and slowdown shoreline ...

A new study shows how two types of sand can behave like light and heavy liquids, shedding light on geological processes from mudslides to volcanoes and potentially enabling new technologies from ...

There’s more to beach sand than meets the eye. It has stories to tell about the land, and an epic journey to the sea. That’s because mountains end their lives as sand on beaches. Over time, mountains ...