Unveiling the Massive Dimensions of the World's Largest Iceberg

Satellite measurements reveal that the world's largest iceberg, A23a, has a surface area of 1,500 square miles, a volume of 263 cubic miles, and a mass just below one trillion tonnes. It is currently being carried northwards by wind and ocean currents at a rate of about 30 miles per day. The iceberg, which had been grounded for 30 years, is now drifting past the Antarctic Peninsula and may disrupt the feeding routines of wildlife. A23a is the surviving largest fragment of an iceberg that broke free in 1986 and is expected to break down once it reaches the open ocean.