Scientific Assessment of a Next Generation Gravity Mission

(1) Delft Institute of Earth Observation and Space Systems (DEOS), Delft University of Technology, (2) Institut für Astronomische und Physikalische Geodäsie (IAPG), TU München, (3) Faculté des Sciences de la Technologie et de la Communication, University of Luxembourg, (4) Geodätisches Institut (GIS), Universität Stuttgart, (5) Thales Alenia Space (TAS), Torino, (6) European Space Research and Technology Centre (ESTEC), ESA, Noordvijk