In this photo taken on Tuesday, Dec. 3, 2019 and provide by the Alfred-Wegener-Institute show the German Arctic research vessel Polarstern in the ice next to a research camp Ocean City in the Arctic region. Germany's Alfred Wegener Institute for Polar and Ocean Research says the expedition ship RV Polarstern will leave its position in the high Arctic for three weeks to rendezvous with two vessels bringing fresh supplies and crew. (Michael Gutsche/Alfred-Wegner-Institut via AP)
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