World Largest Iceberg A-23A Enters Rapid Breakup Phase After Four Decades Adrift
After nearly 40 years drifting across Antarctic waters, the world’s largest iceberg, A-23A has entered an active and accelerated breakup phase, with satellite imagery confirming widespread structural failure across its surface.
Scientists say the development signals the imminent end of one of the most closely monitored ice giants in modern polar research.
Surface water triggers structural collapse
High-resolution satellite images captured in late December revealed large pools of meltwater spreading across A-23A’s surface, along with fresh fractures along its outer edges. According to researchers, the accumulation of water intensified internal stress, weakening the iceberg’s margins and pushing it from slow erosion into rapid fragmentation.
Chris Shuman of th...









