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  1. Earth

    Double-acting bacteria immobilize toxic nanoparticles

    Bacteria lurking in the bowels of an abandoned Wisconsin mine might help remove toxic metals from polluted water.

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  2. Animals

    West Nile virus hits bird populations

    West Nile virus has hammered populations of five common North American birds.

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  3. Planetary Science

    Eris dwarfs Pluto

    Ex-planet Pluto suffers another demotion, as observations show that it's much less massive than Eris, another distant denizen of the outer solar system.

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  4. Tech

    A computer in every cell

    Artificial genes inserted into cells make RNA molecules that can perform logical computations.

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  5. 19849

    With respect to this article on kimberlites, diamonds, and mantle fractures, may I suggest that the fractures in question emanate from hypervelocity bolide impacts on Earth.