50 Dollars First Flyby of Jupiter

The Marshall Islands began issuing commemorative coinage in 1986 following the establishment of its constitution and free association with the United States, and quickly developed one of the more prolific commemorative programs in the Pacific. This piece marks Voyager 1's closest approach to Jupiter on March 5, 1979, when the probe passed within 349,000 kilometers of the cloud tops and returned the first detailed imagery of the Great Red Spot and the discovery of active volcanic activity on Io — neither outcome had been confidently predicted before the flyby.