Polar Star

The Coast Guard Cutter Polar Star backs and rams through dense ice off the Antarctic coast, Jan. 15, 2017. U.S. Coast Guard photo by Chief Petty Officer David Mosley.

The Coast Guard Cutter Polar Star backs and rams through dense ice off the Antarctic coast, Jan. 15, 2017. U.S. Coast Guard photo by Chief Petty Officer David Mosley.