Uncategorized

  1. Health & Medicine

    Rare marrow cells tackle deadly immune reaction

    Researchers have developed a new technique to counter graft-versus-host disease, a common complication of treating blood cancers with marrow-cell transfusions.

    By Ben Harder
  2. Earth

    Lab tests hint at where xenon hides out

    Results of recent experiments in which scientists squeezed a mixture of xenon and powdered quartz at high temperatures and pressures may explain why the gas is found at relatively low concentrations in the atmosphere.

    By Sid Perkins
  3. Health & Medicine

    Ebola may travel on the wing

    Fruit bats can carry the Ebola virus, suggesting that they may spread it in Africa.

    By Nathan Seppa
  4. Astronomy

    A puny way to make planets

    Brown dwarfs are failures in the star-making business, but new observations reveal that they may still succeed in growing planets.