The massive iceberg A23a, once three times the size of New York City, has been caught in a rotating cylinder of water known as a Taylor Column near Antarctica. This unexpected phenomenon, caused by an underwater seafloor feature called Pirie Bank, has kept the iceberg spinning in circles for months, delaying its expected journey north and melting process. Scientists are fascinated by this natural occurrence, highlighting the importance of understanding seabed topography in predicting iceberg movement and its impact on the ocean environment.