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Questions tagged [viking]

Questions regarding the unmanned Viking Mars probes launched by NASA.

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Why are Viking LR results not sufficient evidence of life on Mars?

Gil Levin, one of the scientists involved with the 1976 Viking mission to Mars, has claimed and continues to claim that there is life on Mars, based off the positive results of the Labeled Release (LR)...
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What was the purpose of the small red tank attached to the Titan-Centaur launcher?

Watching a documentary on the Viking missions, I noticed the launcher had a small red tank/rocket attached to one of the solid boosters. It struck me as an odd feature/placement, as I thought you'd ...
5
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What happened to the Viking 2 Orbiter?

What was the ultimate fate of the Viking 2 Orbiter? According to NASA: The orbiter developed a leak in its propulsion system that vented its attitude control gas. It was placed in a 302 x 33176 km ...