News

  1. Health & Medicine

    Bug bites suggest new stroke drug

    Changing a human enzyme so that it resembles one from blood-sucking insects may lead to a new treatment for strokes.

    By John Travis
  2. Astronomy

    Andromeda’s building blocks

    A radio telescope has made the first conclusive observations of gas clouds that could be the leftover building blocks of the Andromeda galaxy, the Milky Way’s closest large spiral neighbor.

    By Ron Cowen

  3. Fish guts reveal microbial alliance

    Scientists are studying germfree zebra fish to better understand how microbes influence gut development.

    By John Travis
  4. Health & Medicine

    Is ‘drink plenty of fluids’ good advice?

    Definitive studies need to determine whether increasing fluid intake during respiratory infections is really a good idea, says a team of researchers.