The massive Antarctic iceberg, A23a, has dislodged from the Filchner Ice Shelf in the Weddell Sea after three decades, according to the British Antarctic Survey. The iceberg, measuring 4,000 square kilometers, is now drifting past the northern tip of the Antarctic Peninsula. Scientists are astonished by this event and are monitoring the iceberg’s trajectory. There are concerns about its impact on sub-Antarctic South Georgia and the possibility of it reaching South Africa.