I've just found a massive plot-hole in Star Trek. On stardate 46379.1 the USS Enterprise D arrives at Deep Space Nine "to assist in the reconstruction of the Bajoran aqueduct systems, damaged during the Cardassian occupation". The exterior view of the Enterprise docked at an upper pylon is shown in both the DS9 episode "Emissary" and in the Next Generation episode "Birthright, Part I". However, in the TNG episode Bajor is nowhere to been seen. Both episodes take place before the station was moved closer to the wormhole by order of Major Kira in "Emissary, Part II"