"It's exciting to see A23a on the move again after periods of being stuck," oceanographer Andrew Meijers said.

With a surface area more than twice that of Greater London's, A23a is the biggest iceberg on the planet, having calved from the Filchner-Ronne Ice Shelf in 1986. The frozen leviathan is now on the move across Antarctica seas once more having spent the last few months going round in circles.

The world’s largest iceberg, A23a, is on the move again after months stuck in ocean currents, and the scientists are tracking its path.

The world's largest and oldest iceberg has resumed its drifting journey in the Southern Ocean after spending nearly a year trapped in a water vortex. A23a, a 1,500-square-mile 'mega-berg', had been stuck north of Antarctica's South Orkney Islands for months,