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  1. Humans

    Letters from the January 6, 2007, issue of Science News

    Gone with the heat? “Feeling the heat of an extrasolar planet” (SN: 10/28/06, p. 285) made me wonder how long a gas planet is expected to survive when one of its faces is more than 1,000°C. The conventional model of our solar system assumes that gas planets can form and survive only in a cold […]

    By Science News
  2. Humans

    When budgeting for quakes, dig deep

    If earthquakes that struck the United States since 1900 are any guide, the nation can expect to suffer seismic damages of about $2.5 billion dollars each year in the future.

    By Sid Perkins
  3. Earth

    Scraping the bottom

    A survey of deep waters in western Lake Superior has revealed the tracks left by massive icebergs scraping bottom there during the last ice age.