It appears people are still confused about the purpose of Silent Running. We not discussing a cloking device. We discussing the ship's ability to reduce it's heat signature. And the only purpose is to aid in avoiding detection, not eliminating all possibility of detection. So, Broken Wolf is correct in wondering about why lights are on while in Silent Running. Of course, the heat from the interior lights are already handled by Silent Running so interior lights should be left to the discretion of the pilot. However, If I were a ship designer, I would have automatically turned off exterior lights during silent running. Has anyone tried turning on exterior lights at an outpost and then enabled silent running to see if the exterior lights are automatically turned off?