How do the surfaces of comets evolve with time?: Insights from Rosetta’s two-year journey with 67P/Churyumov-Gerasimenko
M. Ramy Elmaarry1, Olivier Groussin2, Nicolas Thomas3, Maurizio Pajola4, Anne-Thérèse Auger2, Bjorn Johan Ragnar Davidsson5, Xuanyu Hu6, Stubbe Faurschou Hviid7, Knollenberg Joerg7, Carsten Güttler8, Cecilia Tubiana8, Dennis Bodewits9, Sonia Fornasier10, Jean-Baptiste Vincent11, Holger Sierks8 and the OSIRIS team, (1)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (2)Aix Marseille University, Marseille Cedex 03, France, (3)University of Bern, Physics Institute, Bern, Switzerland, (4)CISAS - Center for Studies and Activities for Space, University of Padova, Padova, Italy, (5)California Institute of Technology, Pasadena, CA, United States, (6)Max-Planck-Institut für Sonnensystemforschung, Goettingen, Germany, (7)German Aerospace Center (DLR), Berlin, Germany, (8)Max-Planck Institute for Solar System Research, Goettingen, Germany, (9)University of Maryland College Park, Astronomy, College Park, United States, (10)LESIA Observatoire de Paris, Meudon, France, (11)DLR Institute of Planetary Research, Berlin, Germany
