Flying over the massive iceberg, it's indistinguishable from the horizon. But as it melts, chunks of ice risk floating towards South Georgia, presenting a problem for some of its penguins, seals and ...

A23a had been floating across the Southern Ocean for five years before it ran aground near the Island of South Georgia.

Satellite images taken at the beginning of March show the iceberg parked on a shallow underwater shelf off the coast of South ...

The oldest and largest iceberg on Earth landed on a sub-Antarctic island belonging to Britain Tuesday. According to the ...

After months of floating, the "megaberg" known as A23a has finally come to a halt roughly 50 miles from South Georgia Island ...

The world's largest and oldest iceberg, named A23a, has run aground in shallow waters off the coast of South Georgia, a ...

The world’s largest iceberg has run aground off the coast of a remote island in the Atlantic Ocean, according to British ...

The world's largest iceberg appears to have run aground off the coast of a remote British island home to millions of penguins ...

A23a, trillion-ton mega iceberg the size of Rhode Island, drifting toward South Georgia. Scientists warn of its potential ...

A massive superberg, four times as big as New York City, has halted east of the southern tip of South America.

The nearly one-trillion-tonne block of ice, known as A23a, has grounded on the continental shelf off South Georgia island ...

A23a weighs nearly a trillion metric tons, making it the world’s largest active iceberg. It calved from Antarctica in 1986, ...