Kremlin's archives official Alexander Stepanov told a news conference last Friday that a Soviet-era commission had concluded that a sharp manoeuvre to avoid a weather balloon was the cause of crash of Gagarin's jet.
Photo: Soviet cosmonaut and the first man to travel in space, Yury Alekseyvich Gagarin (1934 - 1968) arriving in London for a Russian trade fair. (Photo by Douglas Miller/Getty Images)