Nearly 400 miles off the coast of Antarctica, the Earth’s largest iceberg — whose sprawling surface covers more than 1,600 square miles — is spinning like a top. The iceberg, dubbed A23a, is ...

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 spinning north of Antarctica and it probably will do so for a long time. The block of ice is caught in a swirling ocean current caused by an obstruction on ...

The oldest and largest iceberg on Earth landed on a sub-Antarctic island belonging to Britain Tuesday.

Images of the largest iceberg in the world have been snapped by NASA as it drifts toward its doom in warmer waters. The iceberg, named A-23A (sometimes called A23a), just escaped from an ocean ...

Roughly 1,550 square miles across, the world's biggest and oldest iceberg, known as A23a, calved from the Antarctic shelf in 1986.

A23a, nicknamed the "queen of icebergs," measures 1,222 miles (1,967 kilometers) in surface area, according to the U.S. National Ice Center. It first broke off from Antarctica's Filchner Ice Shelf ...

The world’s largest iceberg is on the move again, drifting through the Southern Ocean after months stuck spinning on the same spot, scientists from the British Antarctic Survey (BAS) have said.

The iceberg A23a has run aground in the shallow waters off of South Georgia, a remote British territory in the Southern Atlantic, researchers say.

Now, A23a, as it’s known, is spinning in place. After leaving Antarctic waters, the iceberg got stuck in a vortex over a seamount, or an underwater mountain.

A new satellite photo has revealed that the "megaberg," A23a, is beginning to break apart, spawning thousands of smaller ice chunks around the Antarctic island of South Georgia.

The world's largest iceberg, A23a, is spinning north of Antarctica and it probably will do so for a long time. The block of ice is caught in a swirling ocean current caused by an obstruction on ...