The world’s largest and oldest iceberg has “set sail” upon a new voyage across Antarctica's Southern Ocean. Known as A23a, the megaberg weighs almost one trillion tonnes and measures 3,900 ...

It's so big, scientists are calling it a "megaberg." The world's largest iceberg, with the unglamorous name of A23a, continues to move through the ocean near Antarctica, and British researchers ...

The world’s largest iceberg is heading towards a remote British island and could threaten millions of penguins and seals that live there. The huge iceberg A23a measures almost 1,500 square miles ...

A23a, as it's known, broke away from the Antarctic coastline way back in 1986, but it's only recently begun a big migration. For more than 30 years, it was stuck rigidly in the bottom-muds of the ...

The colossal iceberg known as A23a has been slowly spinning in one spot of the Southern Ocean since April. Here’s what experts have to say on the phenomenon.

If A23a doesn't get hung up in shallow and warmer waters, he added, "it could wind up drifting south of Africa into the Indian Ocean. They've even drifted all the way into the Pacific and wound ...

A23a, the world's biggest iceberg, is on the move 37 years after it broke off from Antarctica. The iceberg, which covers about 1,500 square miles, is set to enter the Atlantic Ocean.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The world's largest iceberg, A23a, is spinning north of Antarctica and it probably will do so ...

About the size of Rhode Island, the iceberg known as A23a got stuck in an ocean vortex this summer, spinning in place for months. Now, it's free, and heading back into open Antarctic waters.

However, A23a may not hold its size title for long, because as of May 16, it is only around 12 square miles (31 square km) larger than the next-biggest iceberg, D15A, according to the U.S ...