Halley Research Station, run by the British Antarctic Survey (BAS), is a scientific research station located on the Brunt Ice Shelf floating on the Weddell Sea in Antarctica.
As with the German Neumayer-Station III it is built on an ice shelf floating on the sea, versus being located on solid land on the continent of Antarctica.
Because the ice shelf is slowly moving towards the open ocean it will eventually calve off creating a drifting iceberg.
It is a British research facility dedicated to the study of the Earth’s atmosphere. Measurements from Halley led to the discovery of the ozone hole in 1985.