The Australian Maritime Safety Authority’s Rescue Coordination Centre (RCC Australia) has requested the US Coast Guard’s Polar Star icebreaker to assist the vessels MV Akademik Shokalskiy and Xue Long which are beset by ice in Commonwealth Bay. The US Coast Guard has accepted this request and will make Polar Star available to assist. The intended mission of the Polar Star is to clear a navigable shipping channel in McMurdo Sound to the National Science Foundation’s Scientific Research Station. Resupply ships use the channel to bring food, fuel and other goods to the station. The Polar Star will go on to...