WASHINGTON (Sinclair Broadcast Group) - For the last month, Antarctica's sea ice cover has been sporting a vast, mysterious hole, according to the Princeton University-based Southern Ocean Carbon and Climate Observations and Modeling program.
National Geographic reported Wednesday that the giant opening is as big as the state of Maine -- approximately 30,000 square miles at its biggest.
SOCCOM says the newly discovered hole, called a polynya, is the largest seen in the Weddell Sea since the 1970s.
A smaller polynya formed in the region last year, according to National Geographic.
University of Toronto physics professor Kent Moore tells NatGeo that researchers are investigating what causes polynyas to form.