The two Viking missions to Mars have been extraordinarily successful. Thirteen scientific investigations yielded information about the atmosphere and surface. Two orbiters and landers operating for several months photographed the surface extensively from 1500 kilometers and directly on the surface. Measurements were made of the atmospheric composition, the surface elemental abundance, the atmospheric water vapor, temperature of the surface, and meteorological conditions; direct tests were made for organic material and living organisms. The question of life on Mars remains unanswered. The Viking spacecraft are designed to continue the investigations for at least one Mars year.


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    Title :

    Scientific results of the Viking missions


    Contributors:

    Published in:

    Science ; 194


    Publication date :

    1976-12-17


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    The Viking missions to Mars.

    Soffen, G. A. / Young, A. T. | NTRS | 1972


    The Missions of the Viking Orbiters

    Snyder, C. W. | NTRS | 1977


    The science of the Viking missions

    Soffen, G. A. | NTRS | 1974


    Orbital reconnaissance program for Viking class missions

    Green, R. N. / Souders, S. W. | NTRS | 1970


    Orbital Reconnaissance Program for Viking Class Missions

    R. N. Green / S. W. Souders | NTIS | 1970