News

  1. Physics

    Taking a shine to number 100

    Scientists for the first time literally shed light on the properties of radioactive fermium.

    By
  2. Physics

    Light Switch: Crystal flaws tune the wavelengths

    By tweaking the crystal structure of the semiconductor gallium arsenide, researchers may have found a way to make cheaper components for fiberoptic networks.

    By
  3. Health & Medicine

    Flawed Therapy: Hormone replacement takes more hits

    Elderly women taking estrogen and progestin are more likely to develop dementia, including Alzheimer's disease, and stroke than are women not taking the hormones.

    By
  4. Astronomy

    Red Team, Blue Team: Galaxy survey shows that color matters

    Using the largest survey of galaxies ever compiled, astronomers have found that the cosmos divides sharply along color lines.