Aerial Sahara

 
I think these are sane dunes with strong shadows, but I'm not really sure.  I didn't realize this was even down there, as it was so hazy when I took the photo (see the Image Processing section so see how the original looked).  This goes beyond Mars in appearance- it looks to me like NASA photos of the surface of Venus, imaged through the distorting atmosphere.
©2006, Jeffrey L. Cooper