Experts reveal the truth behind those white streaks trailing planes in the sky

In the vast expanse of the sky, crisscrossed by the paths of airplanes, a curious phenomenon often captures the gaze of onlookers below long, white streaks tracing the routes of these high-flying vessels. These aerial signatures, visible almost anywhere in the world where planes soar, have become as commonplace as clouds drifting in the blue expanse of birds gliding on air currents. Yet, despite their ubiquity, these streaks—often stretching across the horizon in elegant, ephemeral trails—harbor a blend of mystery and misunderstanding, sparking a wide range of reactions from casual wonder to deep-seated suspicion.

While grounded in straightforward scientific principles, the origins and nature of these streaks are frequently overshadowed by a cloud of speculation and conspiracy theories. This widespread curiosity and diverse beliefs regarding what these trials signify reflect a…