Expedition
On Wednesday, 14 October 2015 the research icebreaker Polarstern from the Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), entered its homeport in Bremerhaven [...] personnel in Longyearbyen (Spitsbergen) and Tromsø (Norway). In the course of these five months, Polarstern covered over 16,000 nautical miles (more than 30,000 kilometres).