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Arkady Ostashev, Russian engineer and scientist in the former Soviet space program (died 1998)

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Arkady Ostashev
Russian engineer in Soviet space program
Arkady Ilyich Ostashev was a Soviet and Russian scientist, engineer - mechanic in the former Soviet space program, working on as a designer many of rocket propulsion and control system of Soviet satellites. He was a participant in the launch of the first artificial satellite of…Source: Wikipedia (CC BY-SA)
Scientist
Person who conducts scientific research
A scientist is a person who researches to advance knowledge in an area of the natural sciences.Source: Wikipedia (CC BY-SA)
Soviet space program
Space exploration program conducted by the Soviet Union from 1951 to 1991
The Soviet space program was the state space program of the Soviet Union, active from 1951 until the dissolution of the Soviet Union in 1991. Contrary to its competitors, which had their programs run under single coordinating agencies, the Soviet space program was divided…Source: Wikipedia (CC BY-SA)