Antarctica's A-68: Is the world's biggest iceberg about to break up?
The world's biggest iceberg, A-68, just got a little smaller.
At around 5,100 sq km, the behemoth has been the largest free-floating block of ice in Antarctica since it broke away from the continent in July 2017.
But on Thursday, it dropped a sizeable chunk measuring about 175 sq km.
The iceberg is currently moving north from the Antarctic Peninsula. Having entered rougher, warmer waters - it is now riding currents that should take it towards the South Atlantic.
Prof Adrian Luckman, who's been following A-68's progress, said the new fracture could mark the beginning of the end of this icy giant.
"I am continually amazed that something so thin and fragile has lasted so long on the open sea," the Swansea University researcher told BBC News.
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