Frontiers of nuclear structure research at GSI - some new developments

In this contribution one example of challenging new experimental developments will be presented: direct mass measurements in the GSI experimental storage ring. The exploration of the nuclear mass surface in exotic regions gives first information on the location and persistence of nuclear shells far-off stability and isospin effects e.g. on the pairing strength. An outline of the recently approved GSI project for an extended new synchrotron facility including an overview over the experimental program, new experimental developments, and the perspectives for nuclear structure research is given. (author)