- :: Atom & Cosmos
- :: Body & Brain
- :: Earth
- :: Environment
- :: Genes & Cells
- :: Humans
- :: Life
- :: Matter & Energy
- :: Molecules
- :: Science & Society
- :: Other Topics
- :: Science News For Kids
http://www.sciencenews.org/view/issue/id/61192
In the February 25 Issue:
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July 31st, 2010
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Researchers revamp ideas about what’s in the sun (p. 18)
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How plants and animals fight back when deals go sour (p. 22)
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With lilliputian collectors, almost anything could be sun-powered (p. 28)
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Newly recovered stone tools indicate that hominids lived in chilly northwestern Europe more than 800,000 years ago. (p. 5)
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If the subatomic particle really is smaller than thought, a cherished theory may need tweaking. (p. 7)
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New research shows that measurements of smooth fluid motion away from an object can be used to characterize the roiling flow right up next to it. (p. 7)
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By immobilizing a muscle needed for frowning, Botox injections may interfere with a person’s ability to assess others’ emotions. (p. 8)
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Sports outcomes can influence politicians’ performance at the polls. (p. 8)
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Computer scientists take on one of New York’s weirder quality-of-life issues: which will be the next to explode? (p. 9)
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BLOG: A study showing a genetic basis for exceptionally long life in humans has come under fire from critics. (p. 10)
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New technique promises to be easier, cheaper and faster than other harvesting methods. (p. 10)
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Elevating levels of a tiny molecule in rats’ brains blunted the animals’ cocaine use. (p. 11)
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Tests suggest that the lethal hemorrhagic virus can be stopped if countered soon after exposure. (p. 12)
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Other popular dietary supplements fail to show protection, a large study shows. (p. 13)
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Inducing production of these potent HIV neutralizers will pose a challenge. (p. 13)
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Seafloor sediments show that agriculture has greatly boosted airborne dust in the last two centuries. (p. 14)
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Warming climate could lead to dead zones, acidification and shifts at the base of the ocean’s food chain. (p. 14)
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Science News editor in chief Tom Siegfried reports on a new image of the early cosmos from the Euroscience Open Forum meeting in Turin, Italy. (p. 15)
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Smilodon fatalis used strong forelimbs to pin victims, an analysis of fossils shows. (p. 16)
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Researchers find evidence that Earth’s earliest multicellular life got going 2.1 billion years ago. (p. 17)
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A recently discovered fossil demonstrates that giant whales weren’t always as gentle as they are today. (p. 17)
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(p. 4)
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Review by Rachel Zelkowitz (p. 30)
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Review by Alexandra Witze (p. 30)
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