Measuring roughly 1,350 square miles (3,500 square kilometers) across, A23a is the world's largest and oldest iceberg ...

The biggest iceberg on Earth is heading toward a remote island, creating a potential threat to penguins and seals inhabiting ...

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

The trillion-ton slab of ice, called a megaberg, could slam into South Georgia Island and get stuck or be guided around it by ...

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

The world's biggest iceberg -- more than twice the size of London -- could drift towards a remote island where a scientist ...

The world's biggest iceberg is drifting toward a tiny south Atlantic island, potentially affecting the wildlife there, ...

The trillion-ton slab of ice that scientists call a "megaburg" broke off from the Antarctic’s Filchner Ice Shelf in 1986.

The world's largest iceberg, A23a, is on a crash course towards South Georgia, threatening millions of penguins and seals.

Megaberg A23a might be on the verge of running into South Georgia and surrounding islands in the South Atlantic. The result could spell trouble for wildlife on those islands, and A23a's movement is a ...

A massive iceberg, twice the size of London, is heading towards South Georgia, threatening penguin and seal populations.