I've been interested in this thing for a while, and they X-Ray'd it a while back. It wasn't the inner workings that baffled them, it was all the small parts, and how it fit together. It was a bit like trying to assemble the Lego Star Destroyer with no instructions, blindfolded. And you had to pick up the pieces from the bottom of the ocean. With one hand tied behind your back. While being attacked by cougars. Ocean-going cougars.
The thermal exhaust port of your Death Star™ plays a critical role in the dissipation of excess waste heat produced by the Death Star's energy reactors. Under no circumstances is the thermal exhaust port to be covered, obstructed or modified in any way.