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

The world's biggest iceberg -- three time the size of New York City -- could drift towards a remote island where a scientist warns it risks disrupting feeding for baby penguins and seals.

The world's biggest iceberg is officially on the move. A23a is double the size of Greater London and weighs nearly a trillion tonnes. The megaberg has been grounded on the seafloor for over 30 ...

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 ...

Calving, when chunks of ice break off from ice shelves to form icebergs, is common and increasingly influenced by climate change. For extremely large icebergs, this process is typically slow, often ...