A major body of frozen water has run aground in the Southern Ocean. A23a, the world’s largest and oldest iceberg, broke off Antarctica nearly 40 years ago. In 2020, it began to journey toward South ...

It's been a long and unusual journey for the world's largest iceberg, known as A23a, but it's ending in a relatively usual way: breaking apart and melting in the warmer waters of the South Atlantic ...

The trillion-ton slab of ice — called a megaberg — is currently aground near the South Georgia Island. A23a could affect the marine life on the island, including penguins and seals, as they use the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Newly released satellite footage shows the ...

An iceberg, known as A23a, top, seen on a NASA satellite, is visible near South Georgia Island, bottom, on Sept. 1, 2025, off the coast of Antarctica. (NASA Worldview via AP) (Uncredited) The world's ...

(CNN) — The world’s largest iceberg is “rapidly breaking up” into several large “very large chunks,” scientists from the British Antarctic Survey (BAS) have said. Previously weighing nearly a trillion ...