Data from NASA's Magellan spacecraft and Pioneer Venus Orbiter is used in an undated composite image of the planet Venus. Its thick and noxious atmosphere is dominated by carbon dioxide - 96.5% - with lesser amounts of nitrogen and trace gases. In fact, with Venus getting far less scientific attention than other planets such as Mars, the direct detection of its oxygen has remained difficult. They noted that this atomic oxygen, which consists of a single oxygen atom, differs from molecular oxygen, which consists of two oxygen atoms and is breathable. "The Venus atmosphere is very dense.

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Persons: Heinz, Wilhelm Hübers, Hübers, Helmut Wiesemeyer, Max Planck, Wiesemeyer, Will Dunham, Rosalba O'Brien Organizations: NASA, JPL, Caltech, Handout, REUTERS, Rights, Venus, Boeing, German Aerospace Center, Nature Communications, Max Planck Institute for Radio Astronomy, Thomson Locations: SOFIA, Hawaii, Germany