After breaking off the Antarctic ice shelf nearly 40 years ago, the iceberg codenamed "A23a" has long held the title of the world's largest iceberg. However, information indicates that the iceberg is rapidly disintegrating, and researchers predict it may not survive past the end of November 2025.
After breaking off the Filchner Ice Shelf in Antarctica in 1986, A23a remained stranded in the Weddell Sea for over 30 years, becoming stuck on the seabed. Due to ice melt and other factors, it began moving northward around 2020. With the disintegration of A23a, iceberg D15a, covering approximately 3,000 square kilometers, became the world's largest iceberg.
Researchers had previously predicted that with the arrival of spring in the southern hemisphere and the continued warming of the sea, A23a might rapidly break into smaller and smaller parts.




