Shades and textures

[ 1 ] Comment

psp_006473_1125_1-0x
A Piece of Mars: This 480×270 m (0.3×0.17 mi) scene shows the contact between two very different terrains. On the left is a bright surface with polygonal cracks (characteristic of periglacial terrain – this is at a high latitude). On the right is a dark rippled sand sheet that superposes the polygonally-cracked surface. The long meandering furrows might be the beginnings of polygonal cracking in the sand, which might expand if wind doesn’t erase them. (HiRISE PSP_006473_1125, NASA/JPL/Univ. of Arizona)

One Response to Shades and textures

  1. John Baez says:

    Wonderful contrast! The right is so dark it looks like it’s in shadow.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>