NASA since released two more pictures of the area under different lighting conditions and from different angles.
The researchers say there are "no known geologic mechanisms that are capable of creating the anatomical accuracies presented in this formation," and that the "natural creation of a formation with 17 points of anatomical correctness seems to go well beyond the probability of chance."
"I know art when I see it," Haas, the sculptor in the group, told Discovery News.
Despite my nice chat with Mr. Haas, who is working on a book on the subject, I'm not convinced. We do agree on one point however: The best way to resolve the matter one way or another is to go there.
Oh, and in case you're wondering, NASA did image the site with the follow-on Mars Reconnaissance Orbiter, but it didn't include high-resolution details. Here's that view: