Uncategorized

  1. Materials Science

    Thin Jet Flies Two for One: Double streams yield sheathed nanoballs, fibers

    Researchers have used powerful electric fields to stretch liquids into ultrathin jets in which a stream of one liquid encloses the stream of another.

    By Peter Weiss
  2. Animals

    Honey-Scented Elephants: Young males’ faces drip sweet signals

    An Asian bull elephant just reaching maturity secretes a liquid from glands on its face that smells like honey.

    By Susan Milius
  3. Health & Medicine

    Broken Weapon: Mutation disarms HIV-fighting gene

    A gene that once produced a small protein able to prevent HIV from infecting cells now lies unusable in the human genome.

    By John Travis
  4. Astronomy

    Ambitious Mission: Hubble slated to get one heckuva tune-up

    If all goes according to plan, astronauts aboard the space shuttle Columbia will embark on the fourth and most technically challenging mission to replace damaged parts and install new detectors on the Hubble Space Telescope.