Uncategorized

  1. Archaeology

    Greeks followed a celestial Olympics

    A Greek gadget discovered more than a century ago in a 2,100-year-old shipwreck not only tracked the motion of heavenly bodies and predicted eclipses, but also functioned as a sophisticated calendar and mapped the four-year cycle of the ancient Greek Olympics.

    By Ron Cowen
  2. Planetary Science

    Cassini finds liquid ethane on Titan

    After years of speculation, planetary scientists have now confirmed that Titan has at least one lake made of liquid ethane.

    By Ron Cowen
  3. Life

    How the snake got its fangs

    A study of snake embryos suggests that fangs evolved once, then moved around in the head to give today’s snakes a variety of bites.