SEATTLE - The world's most powerful non-nuclear ice breaker returned home to Seattle Friday.
The Polar Star, a 400-foot Coast Guard cutter, arrived at Pier 66 Friday morning after spending more than three months on a mission in Antarctica.
The 13,500 ton icebreaker cut through more the 70 miles of thick ice to re-supply two research stations.
The Polar Star was built in 1973 and commissioned in 1976.
It is one of the largest ships in the U.S. Coast Guard and the only U.S. icebreaker capable of crushing through thick Antarctic and Arctic ice.