more than three months, the instruments drifted with the ice across the Arctic, recording how the atmosphere, sea ice, and ocean change during summer. They had drifted unexpectedly far and fast, until [...] a rare glimpse into the buoyant plume of outflowing water that rises from beneath the ice. As the Arctic transforms under the influence of climate change, sustained monitoring efforts like this one provide [...] collecting cores about 50 cm long. During this cruise, our focus is on shelf areas and the seafloor–ocean interactions. At last, we had the chance to retrieve „MUC – nificent“ cores in front of 79 North Glacier