Vol. 171 No. #16
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More Stories from the April 21, 2007 issue

  1. Psychotherapy aids bipolar treatment

    Any of three forms of psychotherapy enhances emotional stability in people with bipolar disorder who already receive standard medications for that severe psychiatric ailment.

  2. Earth

    Increase in chemical disposals

    Industrial facilities in the United States released more than 4 billion pounds of chemicals into the environment in 2005, according to the Environmental Protection Agency's Toxics Release Inventory.

  3. Astronomy

    Eclipsing a black hole

    A chance eclipse has enabled astronomers for the first time to measure the width of a disk of swirling, hot matter around a supermassive black hole.

  4. Physics

    This is your brain on a chip

    Biophysicists have put neurons on a chip and induced them to form multiple patterns of synchronized firing, the mechanism at the basis of memory.

  5. Physics

    Toward imaging single biomolecules

    Experiments have given additional evidence that a future generation of X-ray sources called free-electron lasers may be able to image single biomolecules.

  6. Earth

    On the rocks

    New research explains why a cancer-causing form of chromium has been turning up in ground and surface waters far from industrial sources.

  7. Physics

    Tiny particles baffle physicists, again

    An experiment failed to confirm the existence of a new elementary particle called the sterile neutrino, but its results could still point to some new physics.

  8. Planetary Science

    Little Enceladus disturbs Saturn’s magnetic field

    Saturn's tiny moon Enceladus is acting as a brake on the giant planet's magnetic field.

  9. Violent Justice: Adult system fails young offenders

    Laws that allow people under age 18 to be tried and imprisoned as adults have unintended effects, promoting an increase in new violent offenses among youth handled by the adult justice system.

  10. Paleontology

    Forest Primeval: The oldest known trees finally gain a crown

    Recently unearthed fossils provide new insights about the appearance of the world's oldest known trees, plants that previously were known only from preserved stumps.

  11. Planetary Science

    Northern Exposure: The inhospitable side of the galaxy?

    Our solar system's periodic motion from one side of the galaxy to the other could expose life on Earth to massive amounts of cosmic rays and cause recurring, catastrophic mass extinctions.

  12. Tech

    A New Low: Lilliputian pipette releases tiniest drops

    Physicists have constructed a pipette that dispenses a billionth of a trillionth of a liter.

  13. Health & Medicine

    Visual Clarity: People with MS maintain eyesight with drug

    A drug for multiple sclerosis seems to prevent subtle vision loss in many patients.

  14. Health & Medicine

    Tenacious STD: Drug-resistant gonorrhea is spreading

    Responding to a surge in tough-to-treat gonorrhea, the CDC has stopped recommending Cipro-class antibiotics for the disease.

  15. Astronomy

    Back to (Near) the Beginning: Galactic springtime

    In their quest to capture ever-earlier moments of cosmic history, astronomers may have found some of the first galaxies.

  16. Computing

    The Machine’s Got Rhythm

    By teaching computers how to transcribe musical recordings, a relatively mundane task, researchers are opening new musical possibilities.

  17. Tech

    Wanted: Better Yardsticks

    A new federal survey has found that a lack of measurement tools may jeopardize the United States' edge in technological innovation.

  18. Humans

    Letters from the April 21, 2007, issue of Science News

    How the West isn’t one The author of “Why So Dry? Ocean temperatures alone don’t explain droughts” (SN: 2/10/07, p. 84), seems to feel, like most other writers do, that “the western United States” properly covers all geographical bases. Believe me, the Pacific Northwest is anything but dry. One other point about geography: Weather phenomena, […]