World's largest iceberg moves, leaves Antarctica after nearly 40 years of 'rest'
The iceberg named A23a covers an area of about 4,000 square kilometers, and it was originally birthed in 1986 when it calved from the Filchner Ice Shelf. But the hefty berg got stuck soon after when its submerged keel became lodged on the seafloor in the Weddell Sea in West Antarctica, reported Liv…