PSE invites all interested scientists – and especially early-career scientists – to this workshop with the goal to discuss the science rationale of geodetic-geophysical in-situ measurements in Antarctica. We will evaluate the challenges and benefits of utilizing respective infrastructure in dedicated, temporarily restricted projects as well as with a long-term prospect. For this, the international cooperation and coordination will get even more important especially when defining the most important scientific questions and developing new ideas to exploit synergies in a much better way than at present.