"It's a trillion tons of ice," as one expert told NPR. Now the largest iceberg in the world, A23a, is on the move after decades of being grounded on the seafloor.

It's so big, scientists are calling it a "megaberg." The world's largest iceberg, with the unglamorous name of A23a, continues to move through the ocean near Antarctica, and British researchers ...

T he largest and oldest iceberg in the world, named A23a, is on the move again after being stuck in a votex for months near the South Orkney Islands. It is now drifting in the Southern Ocean.

The world's largest iceberg, A23a, is stuck again. For more than 30 years, the giant frozen block — equivalent to the size of Rhode Island — was grounded on the sea floor in Antarctic coastal ...

The iceberg A23a, which had broken off Antarctica, ... The iceberg is more than twice the size of Greater London, measuring about 1,500 square miles (about 4,000 square kilometers).

Giant iceberg breaks away from the Brunt Ice Shelf in Antarctica 00:59. The world's biggest iceberg — which is roughly three times the size of New York City — is "on the move" after being ...

The world's biggest iceberg - more than twice the size of Greater London - is on the move. After a few weeks loitering on the fringes of Antarctica, it's begun to drift at pace once more. A23a, as ...

The gigantic iceberg A23a, ... Icebergs of this size can be up to 1,300 feet (400 meters) tall from top to bottom, with around 90% of its mass submerged, Shuman said.

The world's largest iceberg, A23a, is moving into the open waters near Antarctica after being essentially stuck in place for decades. It's seen here in satellite imagery from Nov. 15.

A satellite view of iceberg A23a, as seen on November 24, 2023, which scientists say has become unstuck from the ocean floor and is moving away from Antarctica.

The Role Of Icebergs. Icebergs like A23a play crucial roles in our planet's ... The iceberg's size means that it could potentially impact shipping routes or even contribute to changes in local ...