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  1. Astronomy

    Images from the Edge

    Examining nearby reaches of the universe at ultraviolet wavelengths, a recently launched spacecraft has found regions of star birth in unexpected places.

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  2. Humans

    Letters from the February 19, 2005, issue of Science News

    Negative thinking The article “Sweet Glow: Nanotube sensor brightens path to glucose detection” (SN: 1/1/05, p. 3) mentions “ferricyanide, an electron-hungry molecule.” This puzzled me no end. Aren’t ferricyanide molecules, unlike their ions, electrically neutral? I’m trying to visualize ravenous molecules gobbling up innocent electrons. Ernest NussbaumBethesda, Md. Ferricyanide is indeed an ion, with a […]

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  3. Chemistry

    Molecular surgery traps hydrogen inside carbon cage

    In a feat of precision chemistry, scientists have locked a pair of hydrogen atoms inside a soccer ball–shaped carbon molecule known as a buckyball.