Pine Island Glacier's Latest Iceberg, B-46

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On Oct. 29, 2018, a massive iceberg broke away from Pine Island Glacier in Antarctica.

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Operation IceBridge flew over the new iceberg, B-46, on Nov. 7, 2018.

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Pine Island Glacier is one of the fastest-melting glaciers in Antarctica.

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Crevasses criss-cross the glacier as ice flows to the sea.

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