On Mars is the definitive treatment of

is the definitive treatment of the subject and can be used as a text for graduate courses

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as exciting fiction brilliantly told

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the authors — Morris Tenenbaum of Cornell University

On Mars is the definitive treatment ofAlthough it was only designed for a ninety day surface mission, the Viking 1 lander ultimately transmitted science messages to Earth for seven years. This authoritative history chronicles the remarkable achievements of the Viking program during its first three decades. Commissioned by NASA, it recounts the events surrounding the first planetary landing on Earth's closest neighbor and the first on site search for evidence of extraterrestrial life. It