Never-before-seen dunes on Pluto spotted in New Horizons images
Wind and a process called sublimation helped sculpt the ripples, a new study suggests
![Pluto dunes](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/05/053118_lg_pluto-dunes_feat_free.jpg?fit=860%2C460&ssl=1)
BLOWING IN THE WIND This image from the New Horizons spacecraft’s 2015 flyby of Pluto shows dunes (center bottom and right) along a mountain range. The ripples are made of sand-sized grains of methane ice, researchers say.
SWRI, JHU Applied Physics Lab, NASA