Vol. 163 No. #26
Archive Issues Modal Example

More Stories from the June 28, 2003 issue

  1. Paleontology

    Alaska in the ice age: Was it bluegrass country?

    At the height of the last ice age, northern portions of Alaska and the Yukon Territory were covered with an arid yet productive grassland that supported an abundance of large grazing mammals, fossils suggest.

  2. Calling out the cell undertakers

    Dying cells secrete chemicals that attract other cells that specialize in disposing of cellular corpses.

  3. Earth

    Lead delays puberty

    Even low concentrations of lead in a girl's body may delay her reproductive maturation.

  4. Animals

    African cicadas warm up before singing

    The first tests of temperature control in African cicadas have found species with a strategy that hogs energy but reduces the risk of predators.

  5. Earth

    Germs Begone: New technology cleans dangerous water

    For a penny per liter, people in the developing world should be able to remove most pathogens and toxic pollutants from their home drinking water.

  6. Health & Medicine

    Prevention in a Pill? Baldness drug might avert prostate cancer

    The drug finasteride, given to alleviate baldness and prostate problems, might prevent some cases of prostate cancer.

  7. Astronomy

    Solar Terrain: Revealing the sun’s complex topography

    The sharpest images of the sun ever taken, released last week, show our stellar neighbor’s rugged surface in new and surprising detail.

  8. Earth

    Slow Turnover: Warming trend affects African ecosystem

    Over the past 90 years, rising water temperatures in Lake Tanganyika have led to dramatic losses of productivity among the microorganisms that form the base of the lake's food chain.

  9. Materials Science

    Easy Repair: Novel structural model heals with heat

    The vertebrate spine has provided inspiration for making new structures that heal when heated.

  10. Humans

    Ideal Justice: Mathematicians judge the Supreme Court

    The current U.S. Supreme Court of nine judges behaves as if it were made up of 4.68 "ideal" justices who make their decisions completely independently, a mathematical analysis suggests.

  11. Animals

    Life Without Sex

    The search is on for creatures that have evolved for eons without sex.