Public domain
Dunes in Northern Summer
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This dune field formed near the base of the North Polar cap. Dunes require a source of loose particulate material to form. The source of the northern dune fields around the polar cap may be from the layers of dusty ice that are eroded by strong polar winds. This image was taken during the Martian northern summer, so there is no frost present on the dunes. The dunes closest to the base of the polar cap are long and parallel, indicating strong winds from the direction of the cap.
NASA Image and Video Library’s own descriptionCredit lineDunes in Northern Summer. NASA/JPL, 2017-02-01. Public domain. ID: PIA11181.