IMBP Group 1 - 1972 Number: 3. Selection announced: 22 March 1972. Machinski Dr Georgi Vladimirovich Machinski. Russian Physician Cosmonaut. Born 11 October 1937. Polyakov Dr Valeri Vladimirovich Polyakov. Russian Physician Cosmonaut. Born 27 April 1942. Longest single space flight (437 days). 678 cumulative days in space. Smirenny Dr Lev Nikolayevich Smirenny. Russian Physician Cosmonaut. Born 25 October 1932.                   Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2007 except where otherwise noted.

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