posted on Sep, 24 2013 @ 06:16 AM
I'm gonna 'cop-out' on this one...
At first glance and quick visual analysis as regard to the shadows and light direction, the area of interest does appear to be something protruding
from the surface of the flat-ish rock.
However, the lack of any object that could be producing the shadow on the 'stick' itself leads me to question the 'stick' hypothesis. Where is the
actual object that produces the shadow? Is it a fracture in the rock that produces the shadow? Does the shadow of the 'fracture' extend beyond the
surface of the flat-ish rock?
All these questions need answering and it is doubtful - given the time-management and planning methodologies used by the JPL team to instruct
Curiosity - that this will be actively investigated...
Still, an interesting find, even if it is one of hundreds/thousands of similar such objects of interest found by the rovers and MSL over the years.