Spacewalk Finds Little Damage to Shuttle

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The Popularity of Weight-Loss Surgery

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Shuttle Foam Problem Stymies NASA

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New Stem-Cell Source Sought

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Exploring the Deep Seas

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The Pros and Cons of Bioprospecting

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Shuttle Launch Problems

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The Science of Explosives

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The Year 2005 to Have 'Leap Second' Added

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Panel Seeks to Safeguard Biological Research

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