Ralph McNutt, Jr

Jul. 11, 2008

Planetary Science Update

Mars has water ice in its soil -- and could Mercury be shrinking? In this segment, we'll get the latest from around the solar system, checking in with scientists on both the Mars Phoenix and Mercury Messenger space missions.

mars, nasa, planet, space, mercury

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Michael Pollan Talks Plants and Food

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Building Bridges From Plastic Shampoo Bottles

A New Jersey company transforms plastic waste into beams sturdy enough to support tanks and trains.

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