Three staff members from the U.S. National Science Foundation were medically evacuated during extreme cold and dark conditions in the southern winter.

Three researchers at the U.S. McMurdo Station in Antarctica have been evacuated in a "challenging," nearly 20-hour medical emergency rescue mission this week conducted by the Royal New Zealand Air Force,

The New Zealand air force completed a high-risk medical evacuation of three Americans from Antarctica in freezing temperatures and total darkness on ice runway.