A unique combination of sand and snow transformed a Colorado national park into an otherworldly winter wonderland, a stunning photo shows. The phenomenon occurs about once a week in Great Sand Dunes ...

A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them can help us determine if there was ever enough water on Mars to sustain ...

The incident occurred in late December at Eureka Dunes, the tallest sand dunes in California, the park service announced in a news release. The vehicle or vehicles “caused significant damage to ...