Vol. 173 No. #11
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More Stories from the March 15, 2008 issue

  1. Physics

    Too speedy for gravity?

    A new analysis suggests that five different spacecraft gained more speed as they flew past Earth than can be accounted for by Einstein's theory of gravitation.

  2. Altruistic twist in market economies

    Democratic societies with market economies promote a moral ethic of cooperating with strangers who demand mutual sacrifices in joint ventures.

  3. Materials Science

    Cellulose that stiffens and softens

    A material inspired by sea cucumbers morphs from rigid to soft.

  4. Pick a photo, any photo

    An fMRI scan of the brain can tell what photograph a subject is looking at.

  5. Health & Medicine

    Exercises counteract lazy eye

    Amblyopia, or lazy eye, can be reversed in adults with visual task exercises.

  6. Health & Medicine

    New technique brings Parkinson’s treatment closer

    An efficient technique to make dopamine-producing nerve cells from human embryonic stem cells could mark a step toward devising therapies for Parkinson's disease.

  7. Plants

    City life changes style of weed seeds

    City living pushes for rapid evolution in the seed strategy of a little yellow flower along French sidewalks.

  8. Astronomy

    State of the Universe: Microwave glow powers cosmic insights

    Radiation left over from the Big Bang offers researchers unprecedented cosmic understanding.

  9. Health & Medicine

    Roll Up Your Sleeve: Hypertension vaccine passes early test

    An angiotensin vaccine stifles high blood pressure in an early test in people.

  10. Earth

    Weather maker

    The North Atlantic's Gulf Stream affects the overlying atmosphere more strongly than previously suspected.

  11. Common Age: Worms, yeast, and people share genes for aging

    Roundworms, yeast, and humans share more than a dozen genes linked to aging.

  12. Animals

    Gator Aids: Gators squish lungs around to dive and roll

    Alligator researchers say they have discovered a new role for lungs as maneuvering aids under water.

  13. Anthropology

    Small Wonders: Tiny islanders elevate ‘hobbit’ debate

    The discovery in two South Pacific caves of bones from an extinct group of half-size humans has fueled the already heated scientific debate over the evolutionary identity of so-called hobbit remains from Indonesia.

  14. Health & Medicine

    Dual Role: Painkiller may affect brain

    A class of drugs being developed to block pain could obstruct memory formation as well.

  15. Humans

    Tomorrow’s Stars: Intel Science Talent Search honors high achievers

    The Intel Science Talent Search announced its winners at a gala dinner honoring the competition's 40 finalists.

  16. Health & Medicine

    Beyond Blood

    Bloodless MRI seeks a more direct window into the working brain than conventional techniques.

  17. The Next Ocean

    Increasing carbon dioxide in the air is changing the pH of the ocean, which could mean very different communities of sea creatures.

  18. Humans

    Letters from the March 15, 2008, issue of Science News

    Alpha bird(s) There is a detail not explicit in the article “Birds network too” (SN: 2/23/08, p. 125) that fits the computer network analogy. By its flight path, each bird adds its personal input and helps guide the course of the flock. Don BurnapRapid City, S.D. Andrea Cavagna, a physicist at Italy’s National Research Council, […]