Two planes are en route to conduct a medical rescue operation for one of the 48 workers at the Amundsen-Scott South Pole Station. Both planes will fly into Rothera Research Station, on Adelaide Island, but only one will continue for 1,500 more miles to the Amundsen-Scott station to evacuate the worker, a man employed by contractor Lockheed Martin. A second person may also be evacuated, according to Kelly Falkner, the director of polar programs for the National Science Foundation. If the primary rescue plane crashes, the second aircraft will assist in search-and-rescue efforts.