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  1. Chemistry

    Powerful explosive blasts onto scene

    Researchers have synthesized what could be the most powerful nonnuclear explosive known.

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  2. Animals

    Butterfly ears suggest a bat influence

    Researchers have found the first bat-detecting ear in a butterfly and suggest that the threat of bats triggered the evolution of some moths into butterflies.

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  3. Astronomy

    Hubble Space Telescope: Eye wide open

    Two months after the failure of a fourth gyroscope shut it down, and 3 weeks after a shuttle crew paid it a service call, the Hubble Space Telescope is back in business.

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  4. 19080

    This article fails to point out interesting aspects of the land and ocean temperature data shown in the article.