(CNN) — For months, a gargantuan iceberg has been slowly spinning in one spot in the Southern Ocean — and it could continue to stay trapped in this vortex for quite some time, experts say. As the ...

It is more than twice the size of Greater London. But the world's largest iceberg, known as A23a, is starting to crumble. Satellite images reveal that an enormous chunk has broken off the megaberg, ...

An iceberg, known as A23a, top, seen on a NASA satellite, is visible near South Georgia Island, bottom, on Sept. 1, 2025, off the coast of Antarctica. (NASA Worldview via AP) The world's largest and ...

A hidden ecosystem of giant sea spiders, octopuses, and other stunning sea creatures shows how life can flourish even when sealed off from the surface by a thick layer of ice. A large sponge, a ...