Vol. 171 No. #18
Download PDF Modal Example Archive Issues Modal Example

More Stories from the May 5, 2007 issue

  1. Computing

    Lost in transportation

    A new algorithm might make online driving directions more accurate.

  2. Agriculture

    Bugged wines

    Stinky compounds emitted by ladybugs can impart a foul taste to wines made from grapes on which the insects had been feeding.

  3. Anthropology

    Kin play limited role in chimp cooperation

    Male chimps collaborate in a variety of ways and, like people, often find partners outside of their immediate families for cooperative ventures.

  4. Earth

    Lake Superior is warming faster than its local climate

    In recent decades, the waters of Lake Superior have warmed significantly faster than have air temperatures at nearby sites onshore, a trend caused in part by a long-term decrease in the lake's winter ice cover.

  5. Animals

    Spider blood fluoresces

    Among spiders, fluorescence under ultraviolet light seems to be a widespread trait.

  6. Planetary Science

    A solar forecast

    Solar activity, which waxes and wanes in an 11-year cycle, will most likely begin its next round in March 2008 and peak sometime between late 2011 and mid 2012.

  7. Health & Medicine

    Less Is More (Bone): Yearly osteoporosis drug reduces fractures

    Older women with osteoporosis who received yearly infusions of a drug that prevents bone loss had far fewer fractures than did peers who didn't get the drug.

  8. Talk to the Hand: Language might have evolved from gestures

    Language might have evolved from hand gestures, say researchers who study communication in chimpanzees.

  9. Physics

    Quantum Loophole: Some quirks of physics can be good for science

    Physicists have found a way to almost double measurement precision when using photons to gauge distances.

  10. Automatic Networking: Brain systems charge up in unconscious monkeys

    Even when monkeys are anesthetized, their brains show patterns of electrical activity similar to those exhibited during wakeful activity.

  11. Planetary Science

    Liquid Center: Mercury has a molten core, radar reveals

    Mercury is hot stuff: It's got a core that's at least partially molten, a new radar study of the planet's spin reveals.

  12. Health & Medicine

    More Than Bit Players: Snippets of RNA might sway pancreatic cancer

    Small pieces of genetic material called microRNA might provide a preview of pancreatic cancer's aggressiveness and offer targets for combating the usually deadly disease.

  13. Earth

    Not-So-Clear Alternative: In its air-quality effects, ethanol fuel is similar to gasoline

    Switching the nation's vehicles from gasoline to ethanol may not reduce air pollution.

  14. Archaeology

    Peru’s Sunny View

    Researchers have found the oldest solar observatory in the Americas, a group of 13 towers first used around 300 B.C. to mark the positions of sunrises and sunsets from summer to winter solstice.

  15. Math

    Sensor Sensibility

    Networks of tiny computerized sensors that adjust their function as needed may soon pervade our environment.

  16. Humans

    Letters from the May 5, 2007, issue of Science News

    Mere kats? “Science behind the Soap Opera” (SN: 3/3/07, p. 138) shows that meerkats bear an uncanny resemblance to human beings. We, too, have an innate sense of responsibility for our group and individually commit acts of unspeakable violence. John HagerhorstFrederick, Md. Just a dram “Natural-Born Addicts: Brain differences may herald drug addiction” (SN: 3/3/07, […]