News

  1. Astronomy

    Taste of a Comet: Spacecraft samples and views Wild 2

    Pummeled by debris, a NASA spacecraft last week snatched up dust samples while taking the sharpest images ever of a comet's icy core.

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  2. Humans

    Letters

    Letters from the Jan. 10, 2004, issue of Science News.

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  3. Earth

    When testosterone gets down and dirty

    Testosterone excreted by livestock can pass through soils, which may explain new findings of fish-altering hormonal activity in water downstream of cattle feedlots.

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  4. Astronomy

    X-ray images highlight galaxy collisions

    A new study provides graphic evidence that X-ray observations may be the best way to identify ancient collisions between galaxies.