The U.S. Coast Guard's only heavy icebreaker, the USCGC Polar Star, transits through pack ice in the Southern Ocean, December 2022. (PO3 Aidan Cooney/Coast Guard) Full production of a new polar ...

Bollinger Mississippi Shipbuilding can now expand production of the future USCGC Polar Sentinel, the first in the new class of Polar Security Cutters, beyond preliminary modules that have been in ...