pigeon.io on Instagram: "Runways use fog lights to guide pilots when visibility drops to its lowest limits. During heavy fog, rain, or mist, normal runway markings disappear, but high-intensity runway edge lights, centerline lights, and approach lights cut through the haze like a visual lifeline. These lights aren’t for decoration — they help pilots judge alignment, height, speed, and distance during takeoff and landing when human vision alone isn’t enough. Fog scatters light, so runway lights a