New member here from Tokyo. Hi to all. Photography and image manipulation is my game. Found that a manipulated B&W filtered image is much easier to see. The object spotted by Randy is interesting.

Hi, first post here. Although I have been reading this site like mad for the past month or so (and yes, with consequences for workplace productivity

) I hadn't really planned to post anything here as I have no formal qualifications to add to the already fine roster of experts here. However, I do miss discussion of the apparent details in this stunning B&W rendition of the HD frame. We are all awaiting the verdict of experts in image analysis, but why not try to put into words what is
apparently shown? What strikes me the most are the objects on the right side of the image. Top is what looks a little like (but obviously isn't) a slightly opened book standing upright. I count four straight lines and one right angle here. The arrow at the bottom points to an object with an oval on its side, or possibly something circular viewed obliquely. It looks like an old fashioned lamp or lantern.
And then, and this is why I'm posting, there seems to be one further object not marked by an arrow: just below the "lantern" is what looks like a bowl or a hub with a cylinder protruding vertically. It is ligther than the "lantern" with approximately the same shade of grey as the coral.
I don't know if image artifacts or natural coral growth can produce straight lines, right angles and ovals. If not this as a minimum looks like something manmade. Definitely more so than the "face on Mars."