![](http://www.alamy.com/thumbs/6/750BACA1-2B55-4C20-B2F7-2D978A92F14C/2K5E510.jpg)
Martian landscape. This HiRISE image shows the dunes of Tyrrhena. TerraTyrrhena is located northeast of the massive Hellas impact basin. In our image, there's two types of dune formation: star and barchan. While barchan dunes have slipfaces that indicate the direction of the wind, star dunes result from multiple wind is less than 5 km (3 mi) across. A unique optimised version of NASA imagery. Credit: NASA/JPL/UArizona
Size: 10240px × 4310px
Location: Mars, Terra Tyrrhena
Photo credit: © NASA / digitaleye / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 10k, abstract, barchan, barren, black, desert, deserted, detailed, digitaleye, dunes, geology, geomorphology, hirise, horizontal, imaging, jamie, landform, landscape, mars, marshall, martian, misc22_nasa285, monochrome, nasa, panorama, panoramic, planet, remote, sand, science, slipfaces, surface, terra, terrain, texture, topography, tribaleye, tyrrhena, uahirise, white