Today on Far Future Horizons we commemorate the fortieth anniversary of the Viking Missions to Marsand first successful landing of an unmanned space probe on the surface of Mars.  



Artist impression of a Viking orbiter releasing a lander descent capsule



July 20, 1976, seven years to the day after the Apollo 11 moon landing, the first successful landing on Mars by NASA's Viking spacecraft took place. The ambitious Viking missions continue to evoke pride and enthusiasm for future space exploration.



NASA's Viking 1 and 2 missions to Mars, each consisting of an orbiter and a lander, became the first space probes to obtain high-resolution images of the Martian surface; characterize the structure and composition of the atmosphere and surface, and conduct on-the-spot biological tests for life on another planet.


Artist's concept depicting a Viking lander on the surface of Mars

Viking provided the first measurements of the atmosphere and surface of Mars. These measurements are still being analyzed and interpreted. The data suggested early Mars was very different from the present day planet. Viking performed the first successful entry, descent and landing on Mars. Derivations of a Viking-style thermal protection system and parachute have been used on many U.S. Mars lander missions since.



Viking 40th Anniversary

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