News

  1. Stick insects: Three females remain

    An Australian expedition locates three females of a big, flightless stick insect species thought to have gone extinct.

    By Susan Milius
  2. Astronomy

    Magnetic flip heralds solar max

    Scientists have found another indicator that the sun has reached the maximum of its current activity cycle: The polarity of its magnetic field has reversed.

    By Ron Cowen
  3. Astronomy

    In moon race, Saturn is still champ

    New discoveries have raised the retinue of Saturn's known moons to 30, making the ringed planet the solar system's champ.

    By Ron Cowen
  4. Health & Medicine

    Surveying the Swiss: The eyes have it

    Magnetic resonance imaging can help determine the health of a wheel of cheese.