Uncategorized

  1. Archaeology

    Ancient rains made Sahara livable

    New evidence indicates that seasonal rainfall more than 7,000 years ago turned Africa's eastern Sahara desert into a savannalike area that attracted an influx of foraging groups.

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  2. Humans

    Preserving Paradise

    President Bush has created the world's largest marine reserve, a no-fishing, no-disturbance zone, surrounding the northwestern Hawaiian Islands.

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  3. Humans

    Books for Late Summer

    The writers of Science News present wide-ranging recommendations of books for readers to pack for their late-summer vacations.

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  4. Math

    Names for Numbers

    Named numbers, such as Smiths, have all sorts of intriguing properties.