Science: Two days ago, a small, Twin Otter plane is believed to have crashed in a remote, mountainous area of Antarctica. Three men were on board—two pilots and a mechanic, all Canadian. The plane had been traveling from the US Amundsen–Scott South Pole Station to an Italian research base, where it was to be used as part of Italy’s scientific program. About 10:00 GMT Wednesday the plane’s emergency transmitter sounded, indicating the plane had gone down in the Queen Alexandra mountain range. Because of bad weather and poor visibility, rescue planes have so far been unable to locate the aircraft. The condition of the men on board is unknown.