Icebergs are fresh water ice pieces over 15 meters long. Largest iceberg B-15 measured 300x40 km in 2000. Record Antarctic iceberg was 335x97 km in 1956. Icebergs can reach heights over 100 meters above sea level
Located on Ross Island, Antarctica, at 3,792 metres elevation. Second-highest volcano in Antarctica after Mount Sidley. Contains persistent phonolitic lava lake since early 1970s. Features numerous ice fumaroles and dark caves
Born in 1872 in Norway to shipowners, Amundsen became a polar explorer. Joined Belgian Antarctic Expedition in 1897, first expedition to overwinter in Antarctica. Led first Northwest Passage expedition in 1903-1906 on sloop Gjøa
Vostok Station in Antarctica set ground-level record at −89.2 °C in 1983. Satellite measurements in 2010 showed −92 °C at 3,900 m elevation. High Antarctic locations reach approximately −98 °C surface temperatures
Frozen ground occurs when ground temperature drops below 0°C. Permafrost is permanently frozen soil, gravel, and sand below surface
Earth orbits the sun at 67,100 mph (30 km/s). It takes 365 days to complete one orbit around the sun. The Sun and Earth orbit the galaxy's center at 447,000 mph (200 km/s)