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.

Round and round a city-size iceberg goes, stuck in a vortex over an underwater mountain. When it will stop, nobody knows. By Remy Tumin For more than 30 years, the world’s largest iceberg was ...

The world’s largest iceberg is on the move again, drifting through the Southern Ocean after months stuck spinning on the same spot, scientists from the British Antarctic Survey (BAS) have said.

A jumbo iceberg, currents and an underwater mountain When the floating mass initially broke off from the ice shelf in the ’80s, it didn’t get far before grounding on the bottom of the Weddell Sea.

It is highly likely that the bottom part of the iceberg is resting on a shallow underwater platform around South Georgia, and it has lost an area equivalent to twice the size of Washington DC. The ...

World’s Largest, Oldest Iceberg Runs Aground Near Antarctic Island The behemoth A23a calved in 1986 and has been drifting across the Southern Ocean for the last five years. By Isaac Schultz ...

The world's largest iceberg is losing its edge - and now resembles a 'Starry Night' in the ocean. Researchers tracking A-23A say the large mass is being chipped away by natural elements and is ...

The frozen block is slowly rotating above an underwater mountain named Pirie Bank Seamount, which is about 1,000 meters (3,280 feet) tall. The iceberg, which measures about 61 by 59 kilometers ...

The world’s largest iceberg is on the move again, drifting through the Southern Ocean after months stuck spinning on the same spot, scientists from the British Antarctic Survey (BAS) have said.