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  1. Physics

    Photon-in-a-box slings atom into orbit

    A single photon confined to a tiny, mirror-lined cavity becomes electrically strong enough to swing an atom in loops.

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  2. Earth

    Ice age forest spruces up ecology record

    Scientists have recently discovered a 10,000-year-old forest buried in the sand in Michigan.

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  3. Earth

    Undersea volcano: Heard but not seen

    The search is on for an undersea eruption near the Japanese volcanic island chain.

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  4. Wash that mouth out with bacteria!

    Genetically engineered bacteria may stop tooth decay by replacing the ones in the mouth that destroy tooth enamel.