Peter Schultz

Apr. 03, 2015

Mercury: The Ashtray of the Solar System?

Scientists say that dust from passing comets could have darkened the surface of Mercury.

mercury, Peter Schultz, nature geoscience, carbon

Sep. 28, 2007

Ice Age Extinctions

One team of scientists thinks it knows what killed the woolly mammoth and other ice-age creatures.

mammoths, exinction, impact

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Michael Pollan Talks Plants and Food

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