As of Jan. 16, the megaberg, known as A23a, is roughly 180 miles (290 kilometers) away from South Georgia and the South Sandwich Islands, according to location coordinates from the U.S. National Ice Center. A collision with these islands could be catastrophic for the large colonies of penguins, seals, and other wildlife that live there.

A23a, arguably the world’s largest and oldest iceberg which has been wandering through the South Atlantic and headed for the British Overseas Territory of the South Georgia Islands since last month, has been reported not to have changed course this week nor upped nor melted,

The world's largest iceberg is on a collision course with a remote British island, potentially putting penguins and seals in danger. The iceberg is spinning northwards from Antarctica towards South Georgia, a rugged British territory and wildlife haven, where it could ground and smash into pieces. It is currently 173 miles (280km) away.

The world’s largest iceberg is on a collision course with a remote British island, potentially putting penguins and seals at risk. The iceberg, A23a, broke free from its position north of the South Orkney Islands last month and is now heading towards South Georgia, where it could crash into the island.

The A23a iceberg broke away from Antarctica nearly 40 years ago and is now en route to smash into British territory South Georgia - posing a serious threat to penguins and seals

The world’s largest iceberg, A23a, is drifting northward from Antarctica, potentially threatening South Georgia, a British Overseas Territory in the South Atlantic. The massive iceberg, spanning 3,672 square kilometres (1,418 square miles), has raised fears of ecological disruption and risks to shipping routes.

The slab of ice — named A23a — weighs almost one trillion tonnes and could slam into South Georgia Island before either getting stuck or being guided around the land by currents.

More than twice the size of greater London, the expanse of ice is unpredictable and dangerous.

Congratulations to British Antarctic Survey (BAS) staff who have been awarded a Polar Medal in the 2025 New Year’s Honours List for their contributions to improving our understanding of Antarctica, through scientific or technical work in or about the Polar Regions.

If it gets stuck near South Georgia Island, that could make it hard for penguin parents to feed their babies and some young could starve.

Environmentalists fear for the island's rare king penguins and millions of elephant and fur seals if iceberg collides.