03/09/2026
The world's once-largest iceberg, A23a, has almost completely disappeared after nearly 40 years. It broke off Antarctica's Filchner Ice Shelf in 1986, later separating from A23 in 1991, and at its peak covered roughly 2,000 square miles — about the size of Bali. After decades trapped in the Weddell Sea, it began drifting in 2020, reached open waters in 2023, and eventually melted apart near South Georgia. By March 2026, the U.S. National Ice Center stopped tracking it as it became too small to monitor. 🧊
Disclaimer: The history and final disintegration of A23a are based on NASA, National Geographic, ESA and other scientific sources.