 As the name suggests, it involves an approach to landing during the night where there is nothing to see between the aircraft and the intended runway, there is just a visual, “black-hole”.Pilots too often confidently proceed with a visual approach instead of relying on instruments during nighttime landings.As a result, this can lead to the pilot experiencing glide path overestimation (GPO) because of the lack of peripheral visual cues, especially, below the aircraft.