Uncategorized

  1. Astronomy

    Cosmic Push: Finding pieces of a dark puzzle

    A controversial new study, the first to use gamma-ray bursts to measure the expansion of the universe far back in time, hints that dark energy may not be constant in time.

    By Ron Cowen
  2. Health & Medicine

    Defenses Down: Mutation boosts West Nile risk

    A genetic mutation has been identified that increases a person's susceptibility to West Nile virus.

    By Nathan Seppa
  3. Astronomy

    Images reveal possible origin of young stars

    Astronomers say they have solved the riddle of how young, massive stars can reside so close to the monster black hole at the Milky Way's center.

    By Ron Cowen
  4. Planetary Science

    One star better than two?

    Rather than disrupting the planet-forming process around another star, a nearby companion may sometimes enhance it, new computer simulations suggest.