Location: the continent lies mostly south of the Antarctic Circle
Climate: severe cold; temperatures vary according to altitude and location
Size: 5.4 million square miles (14 million square kilometers); of that only about 108,108 sq miles are ice-free; Antarctica is about 1.5 times the size of the United States
Population: 1,100 to 4,400 researchers and support staff
Government: The continent is governed by the Antarctic Treaty System, which includes the 1961 Antarctic Treaty. It suspended all territorial claims and dedicated Antarctica to science. There are 48 treaty member nations.