Kevin Schawinski

Aug. 08, 2008

Solar Systems and a Mysterious Cosmic Ghost

How does a disk of gas and dust turn into a solar system?A new study suggests conditions had to be just right to make our solar system. Plus, a mysterious cosmic object is stumping astronomers.

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Michael Pollan Talks Plants and Food

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All About Exercise

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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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