Are Titan's dunes made of comet dust?

A new theory suggests that Titan's majestic dune fields may have come from outer space. Researchers had always assumed that the sand making up Titan's dunes was locally made, through erosion or condensed from atmospheric ...

South Australian coastal dunes are on the march

Coastal transgressive dunefields are on the march in South Australia—retreating inland from an angry ocean at an alarming rate. Yet while this occurs in plain sight, communities are largely oblivious to long-term coastal ...

The key to Florida beaches' hurricane recovery: The humble sea oat

From eye level, the wisps of green emerging from sand dunes up and down Pinellas County's barrier islands look sparse, stubby, almost tentative as they peek at the sun. Below the surface, though, they are spreading out, trapping ...