50-Year-Old Data Reveals Venus's Clouds Are Mostly Water

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A new discovery in Venus' clouds revives the debate over the possibility of life - Seven News An analysis of archival data sent back by the American probe "Pioneer Venus Orbiter 1" showed that the water, which makes up 60% of Venus' clouds, is bound to hydrates, not sulfuric acid as previously thought. Scientists who analyzed the data estimated the proportion of iron sulfate in the aerosol at about 16%, compared to 22% for sulfuric acid, which e…