The Australasian Antarctic Expedition began with the departure of SY Aurora from London.

The Australasian Antarctic Expedition was a 1911–1914 expedition headed by Douglas Mawson that explored the largely uncharted Antarctic coast due south of Australia. Mawson had been inspired to lead his own venture by his experiences on Ernest Shackleton's Nimrod expedition in 1907–1909. During its time in Antarctica, the expedition's sledging parties covered around 4,180 kilometres (2,600 mi) of unexplored territory, while its ship, SY Aurora, navigated 2,900 kilometres (1,800 mi) of unmapped coastline. Scientific activities included meteorological measurements, magnetic observations, an expansive oceanographic program, and the collection of many biological and geological samples, including the discovery of the first meteorite found in Antarctica. The expedition was the first to establish and maintain wireless contact between Antarctica and Australia. Another planned innovation – the use of an aircraft – was thwarted by an accident before the expedition sailed. The plane's fuselage was adapted to form a motorised sledge or "air-tractor", but it proved to be of very limited usefulness.

SY Aurora was a 580-ton barque-rigged steam yacht built by Alexander Stephen and Sons Ltd. in Dundee, Scotland, in 1876, for the Dundee Seal and Whale Fishing Company. She was 165 feet (50 m) long with a 30-foot (9.1 m) beam. The hull was made of oak, sheathed with greenheart and lined with fir. The bow was a mass of solid wood reinforced with steel-plate armour. The heavy side frames were braced by two levels of horizontal oak beams. Its primary use was whaling in the northern seas, and it was built sturdily enough to withstand the heavy weather and ice that would be encountered there. That strength proved useful for Antarctic exploration as well and between 1911 and 1917 it made five trips to the continent, for both exploration and rescue missions.