Vol. 167 No. #15
Archive Issues Modal Example |

More Stories from the April 9, 2005 issue

  1. Planetary Science

    Dusty rejuvenation

    The Mars rover Spirit recently had its dirty solar arrays cleaned off, possibly by a dust devil, allowing the craft to generate nearly as much energy as it did when it first landed on the Red Planet in January 2004.

  2. Plants fix genes using copies from ancestors

    Some plants can reinstate genes missing from their own chromosomes but that had been carried by previous generations.

  3. Astronomy

    Moon story waxes fuller

    A new analysis may have put the final piece in the puzzle of how the Moon formed.

  4. Earth

    Lightning creates radiation-safe zone

    A relatively safe region within the seas of radiation that surround Earth owes its existence to lightning storms.

  5. Phages take breaks while ejecting DNA

    Bacterial viruses, or phages, inject DNA into their prey in a way that is more complicated than researchers had previously thought.

  6. Animals

    DNA tells pigs’ tale of diverse ancestry

    A genetic study indicates that pigs were domesticated in at least seven different parts of Asia and Europe, not in just two regions, as many researchers had assumed.

  7. Health & Medicine

    Detecting cancer in a flash

    Instant identification of cancer cells may become possible following experiments demonstrating that healthy and cancerous cells alter laser light in different, and distinguishable, ways.

  8. Physics

    Tense encounters drive a nanomotor

    Exploiting the relative strength of surface tension forces in the world of tiny objects, a novel type of nanomotor creates a powerful thrust each time molten metal droplets merge.

  9. Physics

    Lone protein molecule could tip this scale

    A scale-on-a-chip capable of weighing individual, biologically active proteins took a step closer to reality as a minuscule, vibrating bridge detected the mass of a mere 30 xenon atoms.

  10. Anthropology

    Untangling Ancient Roots: Earliest hominid shows new, improved face

    New fossil finds and a digitally reconstructed skull bolster the claim that the oldest known member of the human evolutionary family lived in central Africa between 6 million and 7 million years ago.

  11. Health & Medicine

    Molecular Switch: Protein may influence chronic-pain disorder

    A cell-surface protein found in the nervous system may play a central role in a chronic-pain condition known as neuropathy.

  12. Astronomy

    Stellar Question: Extrasolar planet or failed star?

    A tiny dot of light next to a young, sunlike star might be the long-sought image of an extrasolar planet.

  13. Remote Control Minds: Light flashes direct fruit fly behavior

    Researchers have exerted a little mind control over fruit flies by designing and installing genetic 'remote controls' within the insects' brains.

  14. Tech

    Open Sesame: Portable devices may achieve magnetic resonance views

    Top-notch magnetic resonance sensing now found only in hospitals and chemical labs may become available in portable devices, thanks to a new type of magnetic sensor.

  15. Animals

    Fish Din: Reef clamor attracts young fish settlers

    When looking for a home, young fish seem to prefer a reef that's alive with the sounds of shrimp and fish rather than a quieter environment.

  16. Chemistry

    Color Trails: Natural dyes in historic textiles get a closer look

    A new chemical technique for extracting natural dyes from ancient textiles could help identify the plant species from which the colorants came.

  17. Math

    Manuscripts as Fossils

    A new mathematical model estimates how many medieval manuscripts have survived to the present.

  18. Code of Many Colors

    Researchers have yet to find markers for race in the genome, but understanding the biology underlying perceptions of race could have dramatic social and personal consequences.

  19. Humans

    Letters from the April 9, 2005, issue of Science News

    Big ideas Your article “Life on the Scales” (SN: 2/12/05, p. 106) reminded me that taking a bird’s song and transposing it down four octaves makes it sound like a whale’s song. The opposite is also true. To hear this, go to http://www.mind.net/music/birdwhaleDemo.mp3. Todd BartonAshland, Ore. The article would imply that the only anomaly to […]