Vol. 165 No. #22
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More Stories from the May 29, 2004 issue

  1. Worm life span set by chromosome tips

    For worms, longer chromosome tips mean longer lives.

  2. Health & Medicine

    Folate enrichment pays baby dividends

    The federally mandated fortification of grain-based foods with folic acid has led to a 25 percent drop in the rate of potentially life-threatening neural tube birth defects.

  3. Astronomy

    Live! Venus’ transit on the Web

    On June 8, astronomers in Europe plan to Webcast observations of the transit of Venus, the first time the planet has passed across the face of the sun as seen from Earth in 122 years.

  4. Health & Medicine

    Estrogen loss induces lung disease in mice

    Estrogen loss hampers lung function in mice by sabotaging the alveoli, the tiny sacs that deliver oxygen-rich air to the bloodstream.

  5. Chemistry

    Strange brew brings inorganic chemicals to life

    A mixture of inorganic chemicals spontaneously forms cell-like structures that behave like tiny chemical reactors.

  6. Health & Medicine

    Cutting blood supply to kill off fat

    Killing the blood vessels that sustain fat tissue causes obese mice to lose weight.

  7. Earth

    Big Thaw Coming: Climate change may slam Arctic

    If the changes in climate predicted for this century come to pass, the people and creatures of the Arctic will face some of the largest challenges.

  8. Astronomy

    Cosmic Push: X-ray study confirms universe’s dark side

    Culling clues from X rays emitted by distant clusters of galaxies, astronomers report new evidence that some mysterious force overcame gravity's tug about 6 billion years ago and ever since has been pushing galaxies apart at an accelerating rate.

  9. Tech

    Groovy Pictures: Extracting sound from images of old audio recordings

    To preserve songs and words on antique vinyl records and wax cylinders, a new scanning technique maps their grooves, then simulates a stylus moving along those contours to extract high-quality sound.

  10. Sexing Brains Down and Up: Early aspirin dose hits male rats below the belt

    Prenatal exposure to a certain class of drugs, which includes aspirin and acetaminophen, leads to adult sexual difficulties in male rats, raising concerns about the use of such drugs by pregnant women.

  11. Animals

    Red Sweat: Hippo skin oozes antibiotic sunscreen

    The hippo version of sweat, which is red-orange, contains pigments that can block microbial growth and some ultraviolet light.

  12. Paleontology

    Crawling through Time: Fish bones reveal past climate change

    The timing of ancient migrations of snakehead fish from the Indian subcontinent into Europe, Asia, and Africa tells scientists about temperature and humidity changes in those locations.

  13. Chemistry

    Chemical Knot: Scientists assemble legendary symbol by interlocking molecules

    Chemists have constructed a molecular version of a Borromean knot.

  14. Earth

    Global Vineyard

    Recognizing that continued climate change may leave some renowned grape-growing regions too hot or too dry to support vineyards, growers may turn to new technology and techniques to produce consistently better fruit.

  15. Humans

    Travels with the War Goddess

    A botany expedition to Samoa turns out to be as much about the people as about the plants.

  16. Humans

    Letters from the May 29, 2004, issue of Science News

    Judging by science “Forensics on Trial” (SN: 3/27/04, p. 202: Forensics on Trial) was an eye-opener. Our courts may be accepting many analytical techniques that haven’t been adequately validated. We should be careful, especially where the death penalty is involved, not to be guilty of hubris in the application of scientific knowledge. Bob SauerPrinceton, Mass. […]