Ok the sceond time I watched this episode, I saw that shadow that the techinition sees though the window showing Midnight's Diamonds. You see some pillars right, ok, and to the leftish/middle you can see onto of 1 piller a ghost shape of something with long arms and legs with small horns (a bit like a goblin) dancing. Then when thay close the big door over the window, when there's only a few cm left, on the right side of the screen you can see it jumpe down (weel you see it's leg and foot land on the ground, and the Tech guy says it jumped. So there is no life on Midnight, its has got ghosts maybe?
Have a look