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45-mile-long iceberg slams into penguin refuge in Antarctica, almost causing ecological disaster


A time-lapse of satellite images shows the iceberg D-30A colliding with and then spinning around Clarence Island in Antarctica.  (Image credit: NASA/EOSDIS Worldview)

A massive iceberg around half the size of Rhode Island recently smashed into a penguin refuge in Antarctica, two years after it was birthed from a similar collision. But it seems to have caused minimal damage.

The hefty tabular berg, named D-30A, is around 45 miles (72 kilometers) long and 12.5 miles (20 km) wide. It is the largest remaining piece of D-30, which was birthed in June 2021 when its parent berg D-28 smashed into land near the Borchgrevink Ice Shelf in eastern Antarctica and broke in two. Since then, D-30A has slowly drifted west along the Antarctic coast.

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