Original description:
A Trace of bitmap public domain image of the planet Mars. Original file is from en.wikipedia.org/wiki/File:Mars_Valles_Marineris.jpeg The Gimp was used clean up image &amp; to reduce colours, scale. The Inkscape function of simplify path &amp; no blur was used.
http://openclipart.org/detail/121795/mars-by-merlin2525
Merlin2525