News

  1. Earth

    Ash Clouds: Severe storms can lift smoke into stratosphere

    New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.

    By Sid Perkins
  2. Earth

    Ash Clouds: Severe storms can lift smoke into stratosphere

    New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.

    By Sid Perkins
  3. Health & Medicine

    Cardiac Connection: Lupus patients exhibit signs of heart disease

    Lupus patients have more signs of atherosclerosis than do healthy people, suggesting that the inflammation that causes many lupus symptoms also damages blood vessels.