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Pavel Popovich (born October 5, 1930, Uzin, Ukraine, U.S.S.R.—died September 30, 2009, Gurzuf, Ukraine) was a Soviet cosmonaut who piloted the Vostok 4 spacecraft, launched August 12, 1962. He and Andriyan G. Nikolayev, who was launched a day earlier in Vostok 3, became the first two men to be in space simultaneously. The two spacecraft came within 5 km (3 miles) of each other. Vostok 4 landed on August 15, 1962. Pavel Popovich, a herdsman...