For over 30 years, the A23a iceberg stayed anchored to the Antarctic Weddell Sea floor before it shrank and lost its grip on the seafloor which turned it into a massive floating fragment of ice. The ...
Iceberg A23a (bottom left) and South Georgia Island (top right) as seen by Aqua's MODIS image on January 15, 2025. Credit: NASA. Most people picture icebergs like big floating boulders in the ocean.
The world’s largest iceberg is still on the move and there are fears that it could be headed north from Antarctica toward the island of South Georgia. The iceberg, called A23a, was previously ...