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  1. Earth

    A hurricane-spawned tornado boom

    Cyclones striking the Gulf Coast in recent years have spawned more twisters that those that hit the region in the mid-20th century.

    By Sid Perkins
  2. Space

    Defogging Titan’s methane mystery

    Researchers have discovered fog just above Saturn’s moon Titan, indicating how methane cycles between the atmosphere and the surface of the moon.

    By Ron Cowen

  3. Science Future for September 26, 2009

    October 5–7 Nobel Committee announces medicine, physics and chemistry awards. Visit nobelprize.org November 1 Petitions for a chemistry-themed postage stamp are due to the American Chemical Society. See cenblog.org/2009/07/07 November 1–3 “Darwin in the 21st Century: Nature, Humanity and God” at the University of Notre Dame in Indiana.