SP-4212
On Mars: Exploration of the Red Planet. 1958-1978

The Viking lander design went through a number of versions in 1968 and1969. Below, the three-legged September 1969 design added a second camera for stereophotography amd moved the meteorology instrument to the high-gain antenna mast.

The Viking lander design went through a number of versions in 1968 and1969. Below, the three-legged September 1969 design added a second camera for stereophotography amd moved the meteorology instrument to the high-gain antenna mast.

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