Uncategorized

  1. Astronomy

    Craft spies new class of gamma-ray sources

    Roughly half the 120 unidentified sources of high-energy gamma-ray emissions in the Milky Way—those at midgalactic latitudes—may comprise a new class of objects and originate from a belt of massive stars that lies only a few hundred light-years from the solar system.

    By Ron Cowen
  2. Agriculture

    Toxic bugs taint large numbers of cattle

    U.S. cattle have dramatically higher rates of infection with a virulent food-poisoning bacterium than had been realized, a factor that leads to widespread carcass contamination during slaughter.

    By Janet Raloff

  3. Hungry spiders tune up web jiggliness

    Octonoba spiders tune the sensitivity of their webs according to how hungry they are.