they're actually frozen sand dunes in Mars' northern hemisphere. A recently released photo by NASA's Mars Reconnaissance Orbiter (MRO) shows a top-down view of the frosty legume lookalikes ...

This story appears in the November 2012 issue of National Geographic magazine. I got my first lesson in the physics of sand dunes in 1998 on an expedition into the Sahara. In order to take aerial ...

Glide over the surreal beauty of Lençóis Maranhenses National Park in Brazil from a mesmerizing drone perspective. Vast white sand dunes stretch endlessly, cradling countless turquoise lagoons that ...

A hidden railway among the sand dunes of a Welsh forest used for key ... railway was identified using laser imaging techniques and aerial photographs, with a 1km length surveyed on the ground ...

Behind many of these beaches are sand dune systems which provide homes for diverse forms of wildlife including plants and insects, some so highly specialised that without these dune habitats ...

NASA's Mars Reconnaissance Orbiter, taken a photo in September 2022 and made public in December 2024, shows a top-down view of the frosty, legume-like dunes, looking similar to "kidney beans," ...