Interior Image Processed Views Of Spherules

Further confirmation that these are the Martian equivalent of sea urchins

BACK

   The original image is from Sol 034, Opportunity - this is the results of the RAT applied to the fossil bed.  Two of the three spheres that were cut in cross section are shown here.  The original image is here.

   On the left is the original view, three frames stacked for image depth enhancement.  I then did a differential transform to enhance the edges of the internal features.

The results?  Most Martian urchins share a 5-fold symmetry with Earthly ones, at least to the best that I can tell.  Observe the faint double lines that indicate internal "plumbing".  Also note the complex things near the epidermal layers.

   This is from the upper right of the original.

   If you compare the faint dark looping structure on the left (3 frame stack, no processing) to the more complex image on the right, the enhancements sure make themselves known.  The only problem with working on images this faint is that noise becomes a problem.  Stacking sure helps a lot but does not defeat basic physics and information theory...

   Still, look at the radial patterns, clusters of things, and reticulated double lines.  There are even what appear to be the "hydraulic" lines that any urchin uses for locomotion.  Definitely biological in origin.

   This is from the lower right of the original.

    Here are enlarged views but they are a bit blurry.  I am working to improve on them, but I am limited by the resolution of the data posted on the JPL site.

   As I get new images processed, I will post them.  However, this is a slow process as much of the data is very low-level and it takes a lot of work to ferret it out.  I typically will try three or four processes before getting an image that is worth saving.

   I am also including a link to an excellent paper on sea urchins that will show many things about them that also might apply to Martian ones.  There are numerous "doubled" spherules, and this is consistent with the fact that terrestrial urchins can reproduce by budding or fissioning, as well as releasing eggs and sperm into the water.  Note the anatomy on pages 38 and 39.

BACK