Feature

  1. Health & Medicine

    The Vaccinia Dilemma

    To inform the current debate on who should be vaccinated for smallpox given the possibility of—or in the event of—a bioterrorism attack, researchers are using mathematical models and data from vaccination campaigns and past smallpox outbreaks.

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  2. Tech

    Building a Better Shuttle

    Researchers are working on both more heat-tolerant materials and totally new designs for vehicles that might ultimately replace the space shuttle.

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  3. After West Nile Virus

    As biologists try to estimate the impact of West Nile virus on wildlife, it's not the famously susceptible crows that are causing alarm but much rarer species.

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  4. Computing

    Pictures Only a Computer Could Love

    New, unconventional lenses shape scenes into pictures for computers, not people, so that computer-equipped microscopes, cameras, and other optical devices can see more with less.