tomcat wrote:

http://marsrovers.jpl.nasa.gov/gallery/all/spirit.html

Look at the little skinney pictures, not the big ones on top.  And, it
is the NAVIGATION CAMERA, not the Panorama Camera.

You are looking at JPL photos, so this is for real.  JPL doesn't kid
around.

Why you do not just post the link to the picture...? Which picture do
you mean ?

I had a look and I do not see anything special. The regular patterns on
the ground are the rover tracks.

Greg Ruo