Which is kind of weird because we'd already seen the
Enterprise-D being constructed in space in the Drafting Room 5 simulation in TNG: "Booby Trap":
Voyager would go on to show
Galaxy-class ships being constructed in space again in "Relativity":
And of course the TNG Technical Manual explicitly states that the
Enterprise was constructed in space, without any mention of components being built on the surface.
Perhaps it's a training facility is used to ensure trainees can learn about starship construction methods safely on the ground and in an atmosphere before they are let loose on the real thing? Or perhaps it's a
Galaxy-class starship being
deconstructed or wreckage being
reconstructed, some sort of forensic analysis? Could it be the
Yamato, or the unnamed ship Admiral Hanson was on at Wolf 359?
Or maybe it's just a trick of perspective and it's actually in low orbit, the background just makes it look like it's on the surface