Dead camelthorn trees against red sand dunes of different shades at sunrise in Deadvlei, Sossusvlei, Namib desert, Namibia, South West Africa

Single bush framed by red sand dunes of different tones in late afternoon sunlight, foreground of scrub grass, Namib desert, Namibia, South West Africa

Single bush framed by red sand dunes of different tones created by shadows in early morning sunlight, foreground of scrub grass, Namib desert, Namibia, South West Africa

Single bush framed by red sand dunes of different tones created by shadows in early morning sunlight, foreground of scrub grass, Namib desert, Namibia, South West Africa

Single bush framed by red sand dunes of different tones created by shadows in early morning sunlight, foreground of scrub grass, Namib desert, Namibia, South West Africa

Single bush framed by red sand dunes of different tones created by shadows in early morning sunlight, foreground of scrub grass, Namib desert, Namibia, South West Africa

Dead tree framing distant red sand dune in Sossusvlei, Namib desert, Namibia, South West Africa

Panorama view of red sand dune of different tones in early morning sunlight, blue sky above, foreground of scrub grass, Namib desert, Namibia, South West Africa

Dead tree silhouetted against red sky and rising sun at sunrise in Sossusvlei, Namib desert, Namibia, South West Africa

View of lines of red sand dune with different tones in shadow of late afternoon sunlight, trees at base, blue sky above, Namib desert, Namibia, South West Africa

View of man running up line of red sand dune with different tones in shadow of early morning sunlight, and sand being blown by winds, Namib desert, Namibia, South West Africa

View of single tree framed by line of red sand dune with different tones in shadow of late afternoon sunlight, and sand being blown by winds, Namib desert, Namibia, South West Africa

Portrait of family on sand dunes

Deadvlei, Namib-Naukluft National Park, Namibia

Deadvlei, Namib-Naukluft National Park, Namibia

Woman in red dress standing on sand

Woman in red dress running on sand

Red vintage bicycle with basket and flowers leaning against wooden fence at beach.

A young woman in a red dress

picnic among the dunes

Woman holding red umbrella in the desert

Couple on beach jumping off sand dune

Kite buggies, Sankt Peter Ording, Schleswig Holstein, Germany

Portrait of group of surfers standing on beach, holding surfboards

Dark dunes march along the floor of Gale Crater, Mars.

Mars outpost near mesa.

Illustration of astronauts examining an outcrop of sedimentary rock on a Martian dune field.

Artist's concept of how a martian motorhome might be realized.

Ostrich in red dunes