Crewmembers of the U.S. Coast Guard Cutter Polar observe icebreaking operations and look for wildlife off the coast of Antarctica, Jan. 7, 2017.
The primary mission of the Polar Star is to establish a resupply channel through Antarctic ice to allow for cargo and fuel ships to safely reach the National Science Foundation’s McMurdo Station.
(U.S. Coast Guard photos by Chief Petty Officer David Mosley)