The world's biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica that's home to millions of penguins and seals. The trillion-ton slab of ice — called a megaberg — could slam into South Georgia Island and get stuck or be guided around it by currents.

T​he largest iceberg in the world is headed toward an island with a massive population of penguins and seals, according to satellite tracking from NOAA. T​he trillion-ton slab of ice that scientists call a "megaberg" broke off from the Antarctic’s Filchner Ice Shelf in 1986.

Measuring roughly 1,350 square miles (3,500 square kilometers) across, A23a is the world's largest and oldest iceberg according to AFP News. Its imposing size and slow, steady movement have captivated oceanographers and researchers alike, though predicting its exact path has proven difficult due to the unpredictable forces of ocean currents.

Incredible new satellite images show the world's largest iceberg on a potential collision course with South Georgia Island. On Jan. 22, NOAA’s GOES East satellite captured imagery of A23a slowly drifting northeastward in the Southern Ocean.

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.

The world’s largest iceberg is still on the move and there are fears that it could be headed north from Antarctica towards the island of South Georgia.

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.

The world's largest iceberg is on a collision course with a remote British island, potentially putting penguins

(NASA Worldview via AP) The world's biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica that's home to millions of penguins and seals.

The size of Rhode Island, the iceberg is heading toward South Georgia Island off Antarctica, jeopardizing the penguins and seals who call it home.

A23a, a massive iceberg nearly the size of Rhode Island, towering at 40 meters, is on a collision course with South Georgia.

A massive iceberg, identified as A23a, is drifting northeastward and could be on a collision course with the British territory of South Georgia Island. As of mid-January, the iceberg was estimated to cover an area of 1,