1 day ago · Known as A23a, the 1,400-square-mile iceberg had been stuck on the ocean floor near Antarctica for 37 years, after splitting in 1986 from the Antarctic’s Filchner Ice Shelf.

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 area is about 3,500 square kilometres (1,400 sq mi), which makes it the current largest iceberg in the world. [2] [3] [4]

6 days ago · 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 nautical miles in area as of Jan. 16, 2025, an area roughly the size of Rhode Island.

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, was previously ...

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 A76 in 2021.

Dec 14, 2024 · It is thought A23a will eventually leave the Southern Ocean and enter the Atlantic Ocean where it will encounter warmer waters and likely break up into smaller icebergs and eventually melt. Dr...

Dec 20, 2024 · A23a, the world's largest and oldest iceberg, is finally cruising again through icy ocean waters after an unexpected delay. This summer, A23a got stuck near the South Orkney Islands, twirling in...

Aug 10, 2024 · The world's largest iceberg, A23a, is stuck again. For more than 30 years, the giant frozen block — equivalent to the size of Rhode Island — was grounded on the sea floor in Antarctic coastal...

Dec 1, 2023 · The world's largest iceberg, A23a, is moving into the open waters near Antarctica after being essentially stuck in place for decades. It's seen here in satellite imagery from Nov. 15.

Aug 3, 2024 · Something remarkable has happened to A23a, the world's biggest iceberg. For months now it has been spinning on the spot just north of Antarctica when really it should be racing along with...