News

  1. Astronomy

    Second Time Around: Some old stars may make new planets

    Two old stars appear to have been rejuvenated and may be undergoing a new wave of planet formation hundreds of millions to billions of years after young stars normally do.

    By Ron Cowen
  2. Humans

    A Thirst for Meat: Changes in diet, rising population may strain China’s water supply

    Rapid industrialization, an increase in population, and a growing dietary preference for meat in China are straining the country's water resources to the point where food imports probably will be needed to meet demand in coming decades.

    By Sid Perkins
  3. Physics

    Dusty Fireball: Can lab-made blob explain ball lightning?

    Artificial cousins of ball lightning contain microscopic particles, just like a model says they should.