A study published in Science Advances reveals a key process that had eluded scientists as to how the opening, called a polynya, was able to form and persist for several weeks. The paper is titled ...

But during the winters of 2016 and 2017, a rare hole called a polynya opened in the middle of the sea ice — one about the ...

Scientists aren't sure how it got there. This isn't the first time it's appeared. The hole is a type of polynya. Polynyas are regions of open water surrounded by sea ice. But the Weddell Polynya ...