A Soviet Sonar Operator Tracked Something at 200 km/h Under the Ice in 1979 — It Never Showed on..

Описание: In 1979, a Soviet submarine crew detected a mysterious sound deep beneath the Barents Sea ice.
The strange “quacker” seemed to move at impossible speeds and even appeared to react when the crew changed their sonar settings.
Similar encounters were reported by submarine crews across the Soviet Northern and Pacific Fleets for more than a decade.
But the recordings disappeared, official journals contained unexplained gaps, and a classified investigation never revealed the truth.
Decades later, one question remains unanswered: *What were the mysterious sounds, and why did they suddenly stop?*