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  1. Health & Medicine

    AIDS Abated: Genome scans illuminate immune control of HIV

    Three genetic variations picked out by powerful whole-genome scans help explain why some people develop AIDS quickly while others keep it at bay.

    By Brian Vastag
  2. Health & Medicine

    fryPod: Lightning strikes iPod users

    A jogger wearing an iPod music player suffered second-degree ear and neck burns, burst eardrums, and jaw fractures after lightning struck a nearby tree.

    By Brian Vastag
  3. Materials Science

    Crystal matchmaker

    Nonperiodic structures called quasicrystals can act as interfaces between different crystal structures that would ordinarily not stick to each other.

    By Davide Castelvecchi
  4. Tech

    Double-decker solar cell

    A two-layer, polymer-based solar cell has good efficiency and could be cheap to mass-produce.