A star dune is a type of sand dune that has at least three ridges coming from a central peak, which gives it a star-like shape when viewed from above, according to NASA's Earth Observatory.

The Lut sand-seas are amongst the best developed active dune fields in the world, displaying a wide variety of dune types (crescentic ridges, star dunes, complex linear dunes, funnel-shaped dunes) ...

Sea-level rise is threatening San Francisco’s shores. In February, the city began vegetating the sand dunes as part of its ...

Scientists have long questioned whether the ridges might represent the remnants ... “The structures don’t look like sand dunes,” Manga said. “They don’t look like an impact crater.

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 ...

This giant sand dune in southern Spain is about 98 feet high and 656 feet wide, making it one of Europe's largest sand dunes. What is perhaps even more fascinating is what hides beneath it.

Study by UCSB marine scientists demonstrates the ability of natural dune formations at Santa Monica Beach to withstand more severe storms and rising seas ...