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

The world's largest iceberg, A23a, is on a collision course with South Georgia Island, raising alarms for local wildlife. Penguins and seals may face starvation as the massive ice block disrupts ...

This is not the first time an iceberg has posed a threat to South Georgia. In 2004, iceberg A38 "grounded on its continental ...