Questions tagged [viking]

Questions regarding the unmanned Viking Mars probes launched by NASA.

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How often have signs of life been dismissed as abiotic?

Today, there are rumors about an upcoming announcement of the discovery of (non-conclusive) evidence for life on Venus, apparently they detected some phosphorus compound that is not produced by any ...
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Why were only three known-negative soil samples used to determine the Viking labeled release experiments' false positive rate?

According to Levin, Gilbert V., and Patricia Ann Straat. "The case for extant life on Mars and its possible detection by the Viking labeled release experiment." Astrobiology 16.10 (2016): ...
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Parachute characteristics of the Viking mission

I'm looking for the characteristics (diameter, coefficient of drag, altitude and velocity of deployment) of the parachute used by the Viking descent module on Mars. I found in this document [1] that ...