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Mysterious haze and heavy water on Venus

The SPICAV-SOIR instrument package reveals clues to Venus' planetary evolution

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French scientist Jean-Loup Bertaux oversees the Ultraviolet and Infrared Atmospheric Spectrometer on Venus Express. After the first month in nominal orbit, he's already found haze much higher in the thick Venusian atmosphere than expected, as well as fantastic evidence for heavy water, which could help determine how much water was on Venus at the start.

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Flying over the cloudy world – science updates from Venus Express

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