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  1. Materials Science

    Gas sensor uses nanotube parts

    New sensors use carbon nanotubes to analyze gas.

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  2. Health & Medicine

    Viral protein could help liver therapy

    Researchers have developed a method of delivering gene therapies to targeted cells that makes use of viral proteins rather than whole virus particles.

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  3. Chemistry

    An inexpensive catalyst generates hydrogen

    A new, inexpensive catalyst could make hydrogen generation cleaner.

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  4. Anthropology

    Lucy’s kind takes humanlike turn

    A new analysis of fossils from a more than 3-million-year-old species in the human evolutionary family reveals that the males were only moderately larger than the females, a finding that has implications for ancient social behavior.