Joe Palca Joe Palca is a science correspondent for NPR.

Study: Vaccine Effective Against Cervical Cancer Virus

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Thwarting Terrorism Through 'Information Awareness'

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Israeli Show of Force Follows Hebron Attack

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Rare Genetic Disorder Tied to Assisted Reproduction

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Potential of Human Clone Draws Skeptics

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New Process Mimics Natural Fertilization

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Chemistry Nobel

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Three Share Nobel for Chemistry

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Lab Creates Synthetic Polio Virus

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