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

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 ...

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

The world's largest iceberg, known as A23a, is on a collision course with South Georgia Island, a delicate ecosystem that is ...

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

The trillion-ton slab of ice named A23a could slam into South Georgia Island and get stuck or be guided around it by currents ...

If it gets stuck near South Georgia Island, that could make it hard for penguin parents to feed their babies and some young ...

Known as A23a, the 1,400-square-mile iceberg had been stuck on the ocean floor near Antarctica for 37 years after splitting in 1986 from the Antarctic’s Filchner Ice Shelf. But it began to ...

For over 30 years, the A23a iceberg stayed anchored to the Antarctic Weddell Sea floor before it shrank and lost its grip on the seafloor which turned it into a massive floating fragment of ice. The ...

Iceberg A23a, one of the world's largest icebergs, is drifting toward South Georgia, posing potential risks to wildlife and ...

A23a has followed roughly the same path as previous massive icebergs, passing the east side of the Antarctica Peninsula through the Weddell Sea along a route called "iceberg alley." That is the ...