Public domain
Polygons, Crater Layers, and Defrosting Dunes
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This image from NASA Mars Reconnaissance Rover shows the north polar region of Mars is surrounded by a large sea of dark sand dunes that become covered by seasonal carbon dioxide frost.
NASA Image and Video Library’s own descriptionCredit linePolygons, Crater Layers, and Defrosting Dunes. NASA/JPL, 2008-05-14. Public domain. ID: PIA12112.