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Friday, December 9, 2022
Home A pod of narwhals, with some tusks visible as white streaks. (University of Washington/K. Laidre) A pod of narwhals, with some tusks visible as white streaks. (University of Washington/K. Laidre)

A pod of narwhals, with some tusks visible as white streaks. (University of Washington/K. Laidre)

A pod of narwhals, with some tusks visible as white streaks. (University of Washington/K. Laidre)

A pod of narwhals, with some tusks visible as white streaks. (University of Washington/K. Laidre)

A close encounter with Greenland ice during a 2017 Oceans Melting Greenland field campaign. (NASA)