Scientists have discovered in the atmosphere of Venus is an area with an unusually low temperatures, according to Journal of Geophysical Research.
A layer at elevation of 125 kilometers and its temperature is minus 175 degrees Celsius. As they note it is lower than the known minimum temperature of our planet, and this despite the fact that Venus has a thick atmosphere and is located closer to the Sun. The researchers argue that the observed cold layer is located between two warm.
These results were obtained using the spectrometer installed on board Venus Express. The data obtained from the unit, Physics learned how to distribute carbon dioxide in the atmosphere of Venus. The observations were led into the terminator (the region separating the dark and the light side).
Based on pressure data, the researchers were able to determine the distribution of temperature characteristics of the planet. The researchers argue that the negative temperature carbon dioxide freezes and forms a cloud with high reflectivity (albedo). Indeed Venus Express has revealed these bright clouds of gas formation, but whether they are the result of the emergence of the new layer is unclear.
Venus Express probe has started in November 2005 with the help of the carrier rocket "Soyuz" from the Baikonur Cosmodrome. The orbit of Venus, he was released in April 2006 and has been researching the atmospheric features of the Earth neighbor. To date, the work of the unit has been extended to December 31, 2012.
News prepared by: A. CHirkova