A23a: World’s biggest iceberg on the move after 30 years
8 hours ago About sharing By Jonathan Amos Science correspondent The world’s biggest iceberg is on the move after more than 30 years being stuck to the ocean floor. The iceberg, called A23a, split from the Antarctic coastline in 1986. But it swiftly grounded in the Weddell Sea, becoming, essentially, an ice island. At almost…