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  1. 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

  2. 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. Visit nd.edu/~reilly/darwinconference.html

    By Science News

  3. Desperately Seeking Moly

    Unreliable supplies of feedstock for widely used medical imaging isotope prompt efforts to develop U.S. sources.

    By Janet Raloff

  4. Hunting Hidden Dimensions

    Black holes, giant and tiny, may reveal new realms of space.