Aviation: Why airplanes have red, green lights illuminating the skies

The lights help pilots determine the direction other aircraft and also play a vital role in avoiding collisions.

If you've ever sat by an airplane window during a night flight, you may have noticed something quietly blinking in the dark - tiny red and green lights at the tips of the wings.

To the average passenger, they might seem like decorative features, perhaps added for aesthetic appeal. But in reality, these lights are an essential part of aviation safety, embedded in global protocols and deeply woven into the history of modern flight.