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    » Viking 1 was the first of two spacecraft sent to Mars as part of NASA 's Viking program, and holds the record for the longest Mars surface mission of 6 years and 116 days (from ...

    » NASA's Viking Mission to Mars was composed of two spacecraft, Viking 1 and Viking 2, each consisting of an orbiter and a lander. The primary mission objectives were to obtain high ...

    » NASA 's Viking program consisted of a pair of space probes sent to Mars, Viking 1 and Viking 2. Each vehicle was composed of two main parts, an orbiter designed to photograph the ...

    » Viking 1 began its 10-month journey to Mars on August 20, 1975. Viking 2 followed on September 9. After entering Mars orbit, the spacecraft ...

    » Past, Present and Future," a conference held June 22 at Langley Research Center. + For media: audio clips + Viking Fact Sheet + Viking 1 Orbiter | + Viking 1 Lander + Viking 2 Orbiter | ...