Mark Sykes

Nov. 20, 2009

Living and Working In Space

Last week scientists reported definite signs of water hidden in darkened craters on the moon. Does that find change human plans for the exploration of space? Should it?

space flight, travel, astronauts

Mar. 28, 2008

What's a Planet, Anyway?

In 2006, astronomers voted to remove Pluto from the list of planets in our solar system -- but the controversy over just what should be called a planet lives on.

pluto, planet, planetoid, minor planet, kuiper belt object

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Michael Pollan Talks Plants and Food

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All About Exercise

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Mystery Box

Myths and Tips on Keeping Your Cool This Summer

Think caffeine dehydrates you? Or that you can't get too much water on a hot day? Douglas Casa, of the Korey Stringer Institute, sets the record straight.

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