About the size of Rhode Island, the iceberg known as A23a got stuck in an ocean vortex this summer, spinning in place for months. Now, it's free, and heading back into open Antarctic waters.

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

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

That will take it closer to an area known as ' iceberg alley ', which tends to be where larger icebergs end up. As it heads towards the island of South Georgia, A23a is anticipated to hit warmer waters and melt more quickly.