After a year spent drifting across the top of the world, frozen in sea ice, a German research ship returned home on Monday, ending the largest Arctic science expedition in history.
After a year spent drifting across the top of the world, frozen in sea ice, a German research ship returned home on Monday, ending the largest Arctic science expedition in history.
The Polarstern docked on Monday after 13 months at the top of the world, studying a changing Arctic. 
They locked this research ship in the Arctic sea ice for a year. On purpose. Now they're home. has tracked this amazing science mission from the start.