space.com
Were there ‘lost cosmonauts’ in the early Soviet space program?
In late 1960, Italian amateur radio enthusiasts Achille and Gian Battista Judica‑Cordiglia detected a faint SOS‑coded signal from space while monitoring a rooftop station in Turin. The signal appeared to weaken, suggesting a possible Soviet spacecraft drifting away. This event sparked a Cold War mystery about “lost cosmonauts”—unacknowledged early Soviet missions that may have ended in tragedy before Yuri Gagarin’s 1961 flight. The story remains a haunting legend of the Space Age, with the brothers’ interception forming [...]