Paul Morris wrote:

In this Opportunity image

http://marsrovers.jpl.nasa.gov/galle...JP2443L5M1.JPG

about one-third way down near the center of the row
is a very odd-looking feature that resembles a group of
stalks sticking up out of the ground. It's most likely a
weird rock, but it does look very provocative!

I think it is a small chunk of multi layered rock with the layers
running almost vertically.


--
John Popelish