Roughly 1,550 square miles across, the world's biggest and oldest iceberg, known as A23a, calved from the Antarctic shelf in 1986. Before its calving in 1986, the colossal iceberg hosted a Soviet ...
Roughly 3,500 square kilometres (1,550 square miles) across, the world's biggest and oldest iceberg, known as A23a, calved from the Antarctic shelf in 1986. It remained stuck for over 30 years ...