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

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

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