The world's largest iceberg is gradually breaking apart, as revealed by satellite images. Known as A23a, the iceberg—twice ...

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

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

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

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

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

The trillion-ton slab of ice that scientists call a "megaburg" broke off from the Antarctic’s Filchner Ice Shelf in 1986.

The iceberg, called A23a, was previously “trapped” spinning around an undersea mountain for several months, according to Andrew Meijers, a physical oceanographer at the British Antarctic Survey.

Satellite imagery suggested that unlike previous "megabergs" this rogue was not crumbling into smaller chunks as it plodded ...

It’s also a natural process happening more frequently because of human-caused climate change, said British Antarctic Survey physical oceanographer Andrew Meijers, who examined the iceberg up ...