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Martian 'Blueberries' Likely Shaped by Water
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Martian 'Blueberries' Likely Shaped by Water

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Martian 'Blueberries' Likely Shaped by Water

Martian 'Blueberries' Likely Shaped by Water
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  • <iframe src="https://www.npr.org/player/embed/1960399/1960400" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Scientists say tiny mineral balls discovered on Mars appear to have close cousins on Earth. The balls are known as blueberries, and scientists believe that flowing water created them on both planets. NPR's Joe Palca reports.

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