Joe Palca Joe Palca is a science correspondent for NPR.
Joe Palca, photographed for NPR, 17 January 2019, in Washington DC.
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Joe Palca

Mars May Have Been Struck by Massive Object

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The Most Important Microbe You've Never Heard Of

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NASA Probe Begins Mission to Mars' Polar North

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NASA Space Probe Approaches the Red Planet

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Abu Dhabi Aims to Build First Carbon-Neutral City

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Replicating Birds' Magnetic Vision

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