From the ground, star dunes look like towering, pyramid-shaped mounds of sand. But when viewed from above, their namesake ...

This 2013 astronaut photo shows a giant eye-shaped impact crater in the Sahara Desert that is slowly being circled by ...

CNN’s Stefano Pozzebon reports on how politics are impacting the Amazon rainforest, the world’s largest river by volume.

A decadelong conflict over the condition of a New Jersey resort town’s beaches involving tens of millions of dollars in ...

The sand that makes up the dunes had traveled too ... with the wind instead of against it and suddenly found myself moving ahead at more than 70 miles an hour—an alarming speed.

The age of one of Earth's largest and most complex types of sand dune has been calculated ... can see how quickly this enormous dune formed, and that it is moving across the desert at about ...

Cowles described the chronosequence of vegetation along sand dunes, moving from bare sand beach, to grasslands, to mature forests. A chronosequence is a “space-for-time” substitution ...

For 120 years, the Rubjerg Knude lighthouse has been perched on a sand dune on the northern Danish coast, but coastal erosion from North Sea winds threatened to topple it into the sea. Now the 720 ...