Life On Venus?

The acidic clouds of Venus could in fact be hiding life. Unlikely as it sounds, the presence of microbes could neatly explain several mysterious observations of the planets atmosphere.Venus is usually written off as a potential haven for life because of its hellishly hot and acidic surface. But conditions in the atmosphere at an altitude of around 50 kilometres are relatively hospitable: the temperature is about 70 °C, with a pressure of about one atmosphere. Although the clouds are very acidic, this region also has the highest concentration of water droplets in the Venusian atmosphere. "From an astrobiology point of view, Venus is not hopeless," says Dirk Schulze-Makuch from the University of Texas at El Paso.To look for possible signs of life, Schulze-Makuch and his colleague Louis Irwin looked at existing data on Venus from the Russian Venera space missions and the US Pioneer Venus and Magellan probes. They noticed some peculiar things about the chemical composition of Venuss atmosphere. Solar radiation and lightning should produce large quantities of carbon monoxide in the planets atmosphere, but instead it is scarce, as if something is removing it. They also found hydrogen sulphide and sulphur dioxide. These two gases react with each other, and so are never normally found together unless something is producing them.
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