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  1. Tech

    Little lamp may set quantum tech aglow

    By reliably emitting just one photon when excited by just one voltage pulse, a sophisticated takeoff on a common class of tiny lamps called light-emitting diodes, or LEDs, may help usher in exotic technologies that rely on quantum mechanics, including quantum cryptography and quantum computers.

    By Peter Weiss
  2. Health & Medicine

    Boost in protein repair extends fly lives

    In warmer-than-normal conditions, fruit flies that overproduce a protein-repair enzyme live about one-third longer than typical flies.

    By John Travis
  3. Health & Medicine

    Gene Therapy for Sickle-Cell Disease?

    By adding a useful gene to offset the effects of a faulty one, scientists have devised a gene therapy that prevents sickle-cell anemia in mice.