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 ...

These images from the Smithsonian Magazine Photo Contest show just why penguins have waddled into our hearts ...

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

A colossal iceberg, twice the size of London, is slowly drifting towards a remote island in the South Atlantic. A23a, the ...

The world's biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica ...

A photographer went to South Georgia hoping to find a yellow penguin he saw three years ago. Instead, he found an even rarer ...

As of Jan. 16, the megaberg, known as A23a, is roughly 180 miles (290 kilometers) away from South Georgia and the South ...

Iceberg A23a is on a collision course with the remote British island of South Georgia, which provides an Antarctic haven for ...

said that icebergs such as A23a "are so deep that before reaching an island or mainland they generally get stuck" on the ...

The iceberg cometh. The world’s largest iceberg is on a collision course with a British island off Antarctica, potentially ...

The iceberg cometh. The spinning iceberg is approximately 1,500 square miles in size and located about 173 miles from the ...