Neil deGrasse Tyson

Mar. 02, 2012

Neil deGrasse Tyson On Exploring Cosmic Frontiers

In Space Chronicles, Tyson argues that space exploration is vital to human progress.

space, astronomy, exploration

Feb. 13, 2009

Neil deGrasse Tyson

Ira talks with astronomer Neil deGrasse Tyson about Pluto, teaching science, and more.

space, astronomy, tyson

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Michael Pollan Talks Plants and Food

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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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