Don Brownlee

Sep. 18, 2009

Studying Comet Contents

We'll check in with researchers on the Stardust probe, which captured dust from comet Wild-2 in 2004.

comet, stardust, amino acid

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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Summer's Here!

BOOKS BY OUR GUESTS

Mystery Box

Picture of the Week: The Sun

Photographer Alan Friedman documents the sun’s many faces using telescopes, filters, cameras, and computer software.

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