Marie Tharp pioneered mapping the bottom of the ocean 6 decades ago – scientists are still learning about Earth's last frontier

Born on July 30, 1920, geologist and cartographer Tharp changed scientific thinking about what lay at the bottom of the ocean – not a featureless flat, but rugged and varied terrain.

Suzanne OConnell, Professor of Earth & Environmental Sciences, Wesleyan University • conversation
July 28, 2020 ~10 min

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