What is that?

Watching the trailer at the behest of another post regarding a sound effect borrowed from the original film. At the moment when someone asks, "What is that?" I froze the trailer. Has anyone seen the photos off camera with Scott and various members of the cast standing in front of a very interesting sculpted black chair? That chair is affixed to the outside of the dias facing inward directly in front of the small recess where the globe appears before the star map pops into view. In the scenes with the blue man circling the dias you can only see the back of this chair peeking out over the rim opposite the cameras POV. I wonder if the chair somehow reads the DNA of it's occupant and displays their origin. http://collider.com/wp-content/uploads/prometheus-ridley-scott-set-image.jpg Here is a rear view of the chair and the surrounding equipment powered up. Note the small track on the floor that would allow the chair to slide back away from the dias allowing the occupant to exit. Image appears at 1:36 in long US trailer http://collider.com/wp-content/uploads/prometheus-movie-image.jpg Lastly the photo showing the chair behind the blue man approaching the pilot seat, it is only the back of the chair visible on the side of the dias behind him. I apologize for the poor quality of my source materials but I'm sure any of you can find better versions of these images for examination. http://www.ifc.com/wp-content/uploads/2012/01/0123-Prometheus-alien-cockpit.jpg