A23a, the world's biggest iceberg, is on the move 37 years after it broke off from Antarctica. Scientists will keep a close eye on it as it could threaten wildlife near South Georgia Island. AdvertisementThe world's biggest iceberg, covering about 1,500 square miles, is on the move. NASA WorldviewA23a lost its title of world's biggest iceberg in May 2021, but jumped ahead once again in October 2022, when the previous record-holder, A76, broke into three pieces, per the Guinness World Records website. A gentoo penguin with a newborn chick South Georgia.

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Persons: —, A23a, Andrew Fleming Organizations: Ocean, Service, BBC, British Antarctic Survey, NASA, Records, Getty Locations: Antarctica, South Georgia, Weddell, Soviet, Georgia