David Kestenbaum David Kestenbaum is a science correspondent for NPR. His job allows him to combine his extensive background in physics with his love of broadcast journalism.
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One Key Thing No One Knows About Obamacare

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An aerial view of the Yasuni National Park, in Ecuador's northeastern jungle. Dolores Ochoa/AP hide caption

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Dolores Ochoa/AP

Ecuador To World: Pay Up To Save The Rainforest. World To Ecuador: Meh.

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A family in western Kenya received this cow as part of a Heifer International program. NPR hide caption

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Cash, Cows And The Rise Of Nerd Philanthropy

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Bernard Omondi got $1,000 from GiveDirectly. Jacob Goldstein/NPR hide caption

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Jacob Goldstein/NPR

The Charity That Just Gives Money To Poor People

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Better Accounting Will Boost U.S. GDP

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Same pills. Lower price. Paul Sancya/AP hide caption

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Paul Sancya/AP

Why Doesn't Everybody Buy Cheap, Generic Headache Medicine?

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Rodan Gatia gets water from a spring. A chlorine dispenser is behind her. Jacob Goldstein/NPR hide caption

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Jacob Goldstein/NPR

A Surprising Barrier To Clean Water: Human Nature

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Belize, the home of our offshore company, Unbelizable. Nagyman/Flickr hide caption

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Nagyman/Flickr

Who Hides Money Outside The Country?

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But is it GDP? Charles Sykes/AP hide caption

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Charles Sykes/AP

Lady Gaga Writing A New Song Is Like A Factory Investing In A New Machine

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Pay up, or the bird gets it. (A hoatzin perches on a branch in Yasuni National Park.) Pablo Cozzaglio/AFP/Getty Images hide caption

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Pablo Cozzaglio/AFP/Getty Images

'Give Me The Money Or I'll Shoot The Trees'

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