Planetary and

Space Science

Editor-in-Chief

Rita Schulz,ESA/RSSD ESTEC, Noordwijk, The Netherlands

Board of Advisory EditorsJean-Eudes Arlot, IMCCE, Paris, France

Alexander Basilevsky, Russian Academy of Sciences, Moscow, RussiaRegis Courtin, Observatoire de Paris-Meudon, France

Pascale Ehrenfreund, Leiden Observatory, The NetherlandsThérése Encrenaz, Observatoire de Paris-Meudon France

Tra-Mi Ho, DLR, Bremen, GermanyChris McKay, NASA Ames Research Center, Moffett Field, CA, USA

Francois Raulin, Universités Paris 7 and 12, Créteil, FranceChristopher Russell, University of California, Los Angeles, USAL. Zasova, Institute for Space Research (IKI), Moscow, Russia

Volume 78 ( 2013 )

Amsterdam . Boston . London . New York . Oxford . Paris .Philadelphia . San Diego . St. Louis