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Pioneer-11 Saturn Encounter

by John Macco
28th of October 2013

The first planetary probe to encounter Saturn was  Pioneer-11. After encountering Jupiter in 1974, the trajectory allowed Jupiter to gravity assist Pioneer-11 to allow encounter with Saturn on September 1, 1979 and acted as a pathfinder for the later Voyager encounters with Saturn. Ames Research Center was mission operations center for Pioneer-11. The illustrated cover was autographed by Ames Pioneer-11 Project Scientist, Dr. John Wolfe.





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