News

  1. Materials Science

    Slick Surfaces: Pressure builds to make better motor oils

    Motor oil's protection against the wear and tear of steel engine parts takes effect only at high pressures.

    By Alexandra Goho
  2. Health & Medicine

    Anoint Them with Oil: Cheap-and-easy treatment cuts infection rates in premature infants

    Massaging premature babies with sunflower-seed oil can cut bloodborne infection rates.

    By Christen Brownlee
  3. Astronomy

    Weighing In on a Star: A stellar size limit

    A new study suggests that no star in our galaxy can weigh more than 150 times the mass of the sun.

    By Ron Cowen
  4. Planetary Science

    Slowpoke: Atmosphere put brakes on meteorite that formed famed crater

    The extraterrestrial object that gouged out Arizona's Meteor Crater about 50,000 years ago struck at a speed much slower than most scientists had previously proposed.