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.
David Kestenbaum
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David Kestenbaum

Do Nanotech Products Live Up to the Hype?

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Anthrax Preparations May Not Prevent Deaths

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NASA Chief to Take Post at Louisiana State

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NASA Chief O'Keefe Will Reportedly Step Down

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Report: Robotic Hubble Mission Likely to Fail

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Report Suggests Remote Object Had Warmer Past

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Judge Dismisses Suit Connected with Anthrax Attacks

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Experts Question Levels of Bio-Defense Spending

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Physicists Decry Bush's Mars Mission Plan

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NASA Scramjet Sets a New Air-Speed Record

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WHO Clarifies Smallpox Recommendation

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WHO Allows Smallpox Research

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Nuclear Plants Get Stricter Security Standards

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Cassini Sends Home Shots of Saturn's Moon

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