A23a is a large tabular iceberg which calved from the Filchner–Ronne Ice Shelf in 1986. It was stuck on the sea bed for many years but then started moving in 2020. As of January 2025, its …

Jan 23, 2025 · A23a could break into vast segments any day, which may then hang around for years, like floating cities of ice cruising uncontrollably around South Georgia. This isn't the first …

Jan 23, 2025 · 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, …

Jan 24, 2025 · According to the U.S. National Ice Center—the global entity that names, tracks and documents Antarctic icebergs that meet specific size criteria—Iceberg A23a was 1062.22 …

Dec 14, 2024 · The world's biggest iceberg is on the move again after being trapped in a vortex for most of the year. A23a is 3,800 sq km (1,500 sq miles), which is more than twice the size …

Dec 20, 2024 · About the size of Rhode Island, the iceberg known as A23a got stuck in an ocean vortex this summer, spinning in place for months. Now, it's free, and heading back into open …

Dec 16, 2024 · A23a has held the “largest current iceberg” title several times since the 1980s, occasionally being surpassed by larger but shorter-lived icebergs, including A68 in 2017 and …