Vol. 167 No. #9
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More Stories from the February 26, 2005 issue

  1. Anthropology

    Human fossils are oldest yet

    Homo sapiens fossils found along Ethiopia's Omo River in 1967 date to 195,000 years ago, making them the oldest-known remains of our species.

  2. Earth

    PCBs damage fish immune systems

    A common Arctic fish can suffer subtle immunological impairments from exposure to polychlorinated biphenyls at concentrations recorded in some remote polar waters.

  3. Health & Medicine

    Ketone diet could help in Parkinson’s

    A strict low-carb diet long used to treat some people with epilepsy has been tailored so that it might fight Parkinson's disease.

  4. Earth

    Adding mussel to environmental assessments

    Researchers have developed a new technique, using mussel shells, that could aid in autopsies of aquatic ecosystems that perished for unknown reasons.

  5. Physics

    A quantum fluid pipes up

    After 40 years of trying, physicists have heard a quantum-mechanical whistle emanating from two reservoirs of oscillating liquid helium separated by a perforated membrane.

  6. Earth

    Lava fountain driven by reservoir of gas

    The gases driving a lava fountain that spewed from Italy's Mount Etna in June 2000 had accumulated in a reservoir 1.5 kilometers below the mountain's peak, chemical analyses suggest.

  7. Health & Medicine

    Study can’t tie EMFs to cancer

    A massive, long-term Swedish study has found no sign that occupational exposures to electromagnetic fields might trigger breast cancer in women.

  8. Astronomy


    Astronomers have discovered a star so speedy that it will eventually leave the Milky Way and venture into intergalactic space.

  9. Astronomy

    Ghostly Galaxy: Massive, dark cloud intrigues scientists

    Astronomers say they have found the only known galaxy devoid of stars.

  10. Animals

    The Old Crowd: Minke whales have long thrived in Antarctic seas

    Genetic studies of whale meat from Tokyo grocery stores appear to strengthen the case for protecting Antarctica's minke whales against renewed hunting.

  11. Astronomy

    Big Flash: Record-breaking explosion in outer space

    The brightest flash of light ever recorded from beyond the solar system could help account for a puzzling group of extremely short-lived gamma-ray bursts from distant galaxies.

  12. Shrinking at Sea: Harvesting drives evolution toward smaller fishes

    In response to fishing, numerous fish species have evolved to be smaller and to grow more slowly, creating populations of fish that are poor at reproducing and inefficient at bulking up.

  13. Physics

    Electronic Soup: Molecules in acid broth act as circuit parts

    An electronically promising molecule functions well in acid as a tiny amplifier, underscoring the importance of controlling molecules' electrochemical environments to achieve predictable performance.

  14. Health & Medicine

    To Stanch the Flow: Hemophilia drug curbs brain hemorrhage

    A blood-clotting drug helps some people recover from a bleeding stroke.

  15. Ecosystems

    Return of the Wetlands? Restoration possible for some Iraqi marshes

    Field studies conducted in Iraq last year suggest that some of the region's ecologically devastated marshes could be returned to health.

  16. Poisonous Partnership

    Tools from molecular biology are providing new insights into the viruses employed by parasitoid wasps to manipulate their caterpillar hosts.

  17. Humans

    Bushmeat on the Menu

    Studies of the bushmeat trade reveal that such meat appeals to people who can't afford anything else and to prestige seekers who certainly can.

  18. Humans

    Letters from the February 26, 2005, issue of Science News

    Let’s move it, people When I read of the Hubble Space Telescope–repair controversy (“People, Not Robots: Panel favors shuttle mission to Hubble,” SN: 12/18&25/04, p. 388; “Lean Times: Proposed budget keeps science spending slim,” SN: 2/12/05, p. 102), this question comes to mind: Why can’t an unmanned, powered vehicle latch on to Hubble and fly […]