The world’s largest iceberg, A23, is fragmenting into smaller pieces, potentially jeopardizing both humans and the millions of penguins in the neighboring Antarctic refuge. Alarming photos ...

"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.

The world’s largest iceberg has moved for the first time in 30 years after finally freeing itself from the ocean floor near Antarctica — and it could end up causing problems for wildlife ...

The slow-motion dance is the latest act in a decades-long journey that A23a embarked on after splitting from Antarctica in 1986. It is also staving off the iceberg’s demise.

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 ...