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  1. Physics

    Fusion Boost: Promising path to heavy nuclei

    By using radioactive nuclei as projectiles in accelerator-based nuclear collisions, scientists may be able to produce more readily than expected many exotic heavy nuclei that are impossible to make today but are crucial for future advances in nuclear physics.

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  2. 19273

    There is a striking similarity in the wave patterns of the ash plume on the cover of the Sept. 13 issue (above) and those in the gas of the Perseus Cluster pictured in this article. Could it be that volcanoes produce sound waves we can’t hear but can see in the plume? Paul HeinsGainesville, Fla. […]

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  3. Astronomy

    A Low Note in Cosmos: Sounding out a new role for black holes

    Astronomers have for the first time detected sound waves generated by a black hole.