Germany’s national research centre for Earth-system sciences and a member of the Helmholtz Association. Its geodesy, geophysics and satellite-observation work connects Earth’s interior, surface, oceans and atmosphere. GFZ led the CHAMP gravity, magnetic-field and atmospheric-sounding mission and participates in satellite missions, global observing networks and scientific data infrastructures. Its research supports studies of climate and water-cycle change, natural hazards, resources and the space environment. The centre’s main campus is on Telegrafenberg in Potsdam.