The eight modular buildings of the base are equipped with hydraulic legs and skis so they can be moved. But, this is the first time that the Halley VI base has been relocated since it was first assembled in 2012. [Read full story about the Antarctic base's move]
Some of the earlier bases became covered by so much snow that they had to be abandoned, so the buildings of the latest base are aerodynamically designed to prevent snow from piling up.
They provide accommodation and research facilities for up to 70 scientists and support staff during the Antarctic summer, from December to February.
Although the ice around the Halley VI base is flat and unbroken, scientists have learned that cracks and chasms in the ice shelf have started to grow in recent years, after lying dormant for decades.
To avoid being cut off by the growing chasm, the British Antarctic Survey has decided to move the entire base 14 miles (23 km) to the east of its current location, on the inland side of the growing ice chasm.
The remaining seven modules will be towed in the coming weeks of 24 daylight during the Antarctic summer.
Specialized ice tractors are used to tow the modular building at a very slow pace. While the base buildings are being relocated, scientific experiments will continue at the original site in temporary buildings.
Rough living conditions
In summer, however, temperatures on the Brunt Ice Shelf occasionally rise above freezing and there are months of non-stop daylight.
In particular, scientists at Halley VI hope to learn more about the effects of extreme space weather events that have the potential to cause widespread disruption to electronic devices and communication networks.