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

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

The world's largest and oldest iceberg is on a crash course with a remote island potentially putting wildlife in peril, ...

The 'world's biggest iceberg', "A23a iceberg", which is more than twice the size of London, is drifting toward South Georgia ...

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

An enormous chunk has broken off the world's largest iceberg, in a possible first sign the behemoth from Antarctica could be ...

Antarctic ice shelves are shrinking mainly due to frequent small calving events, while major iceberg break-offs remain rare ...

An enormous chunk has broken off the world's largest iceberg, in a possible first sign the behemoth from Antarctica could be crumbling, ...

Roughly 1,550 square miles across, the world's biggest and oldest iceberg, known as A23a, calved from the Antarctic shelf in 1986. Before its calving in 1986, the colossal iceberg hosted a Soviet ...

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

While warming temperatures are driving a widespread loss of ice shelves, major calving events have not increased in frequency ...