With an area of around 55 square miles (142 square kilometres), the iceberg is larger than Bournemouth, Poole and almost as big as Bristol.
The massive piece of ice is so big that it has been given an official designation, A57A, and it is believed to have broken away from the Filchner-Ronne ice shelf in the Weddell Sea more than a decade ago.
Still, it is dwarfed by 10 other icebergs in the region which have broken away from Antarcitca in the last 30 years, as a result of climate change.
The largest of the huge chunks of ice which scientists have discovered was more than twice the size of Norfolk.
That iceberg took five years to melt and break up.