Winds blowing over a dune can move grains of sand in three main ways. What path these grains take depends on their size, although the exact size in each category can change from site to site. Think of ...

Over a hundred years ago, giant sand dunes threatened to overwhelm parts of Florence, Ore. These dunes snake along the coast for over 50 miles, and some are taller than the Great Pyramid of Giza. And ...

In some places, sand dunes protect shorelines from the onslaught of ocean waves. In other places, the dunes themselves are on the move, and threaten human structures. Host Flora Lichtman talks with ...

The famed coastal dunes that inspired the shifting sand landscape of the desert planet Arrakis in Frank Herbert’s science fiction novel “Dune” are also under siege — from climate change and human ...

Last summer, Stephanie McNamara got her first glimpse of Great Sand Dunes National Park and Preserve in southern Colorado. The park is a monument to sand, where dunes stretch across 30 square miles ...

The iconic landscapes of Wadi Rum in Jordan and southern Africa’s Namib Desert have long been celebrated as the visual inspiration behind the fictional world of Arrakis in Frank Herbert’s 1965 sci-fi ...