The Polar Star is a 399-foot U.S. Coast Guard icebreaker . The 399-foot Polar Star is the only heavy icebreaker in the Coast Guard fleet capable of operating in the deep ice of Antarctica to free ice-bound ships like the Antarctic Chieftain or clear the route to resupply McMurdo Station . Hide Caption 2 of 10 Photos:Photos: Exploring the world's oceans from space
The Polar Star is a 399-foot U.S. Coast Guard icebreaker . Hide Caption 2 of 10 Photos:Photos: Exploring the world's oceans from space