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The 2010 European Venus Explorer (EVE) mission proposal |
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| Authors: | Colin Frank Wilson Eric Chassefière Emmanuel Hinglais Kevin H Baines Tibor S Balint Jean-Jacques Berthelier Jacques Blamont Georges Durry Csaba S Ferencz Robert E Grimm Takeshi Imamura Jean-Luc Josset Fran?ois Leblanc Sebastien Lebonnois Johannes J Leitner Sanjay S Limaye Bernard Marty Ernesto Palomba Sergei V Pogrebenko Scot C R Rafkin Dean L Talboys Rainer Wieler Liudmila V Zasova Cyrill Szopa |
| Institution: | 1. Department of Physics, Oxford University, Oxford, UK 2. IDES, Université de Paris-Sud 11, Orsay, France 3. CNES (PASO), Toulouse, France 4. NASA/JPL, Pasadena, CA, USA 5. SSEC, University of Wisconsin, Madison, WI, USA 6. LATMOS, IPSL, CNRS, Guyancourt, France 7. CNES, Paris, France 8. Université de Reims, Reims, France 9. Space Research Group, E?tv?s University, Budapest, Hungary 10. Southwest Research Institute, Boulder, CO, USA 11. ISAS/JAXA, Sagamihara, Japan 12. Space Exploration Institute, Neuchatel, Switzerland 13. Laboratoire de Météorologie Dynamique, IPSL, UPMC, CNRS, Paris, France 14. Institute of Astronomy, University of Vienna, Vienna, Austria 15. CRPG, Ecole Nationale Supérieure de Géologie, Nancy, France 16. INAF-IFSI, Rome, Italy 17. Joint Institute for VLBI in Europe, Dwingeloo, The Netherlands 18. Space Research Centre, University of Leicester, Leicester, UK 19. Institute of Geochemistry and Petrology, ETH, Zürich, Switzerland 20. Space Research Institute, Moscow, Russia |
| Abstract: | The European Venus Explorer (EVE) mission described in this paper was proposed in December 2010 to ESA as an ‘M-class’ mission under the Cosmic Vision programme. It consists of a single balloon platform floating in the middle of the main convective cloud layer of Venus at an altitude of 55?km, where temperatures and pressures are benign (～25°C and ～0.5 bar). The balloon float lifetime would be at least 10 Earth days, long enough to guarantee at least one full circumnavigation of the planet. This offers an ideal platform for the two main science goals of the mission: study of the current climate through detailed characterization of cloud-level atmosphere, and investigation of the formation and evolution of Venus, through careful measurement of noble gas isotopic abundances. These investigations would provide key data for comparative planetology of terrestrial planets in our solar system and beyond. |
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