We see Martian dust devils – whirlwinds – on the ground, as in this shot from the Opportunity rover in 2016 (first image). From space, we can see the tracks they leave behind by exposing darker material underneath the dust, as in this view of large dunes from Mars Reconnaissance Orbiter in 2009 (second image). Learn more at mars.nasa.gov #NASA #space #nature #science #Mars #dustdevils