Flying over the massive iceberg, it's indistinguishable from the horizon. But as it melts, chunks of ice risk floating ...

Science and technology editor Tom Clarke has been flying over A23a, the world's largest iceberg, and seen first-hand its vast ...

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

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

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

March 4 (UPI) -- The oldest and largest iceberg on Earth landed on a sub-Antarctic island belonging to Britain Tuesday.

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

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

After months of drifting through the ocean, the world’s largest iceberg has finally run aground near a remote island in […] ...

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

As the iceberg melts, its released elements can alter the physics and chemistry of the ocean, propelling particles from the ...

The world’s largest and oldest iceberg, A23a, has come to a halt near South Georgia Island in the South Atlantic Ocean, ...