News
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Jungle Down There: What’s a kelp forest doing in the tropics?
Kelp, algae that grow in cold water, turn out to be surprisingly widespread in tropical seas.
By Susan Milius -
Health & MedicineKeep Out: Treated mosquito nets limit child deaths
Mosquito nets treated with insecticides decrease death rates among children in Kenya's malarial zones.
By Nathan Seppa -
PaleontologyUnexpected Archive: Mammoth hair yields ancient DNA
Hair from ancient mammoths contains enough genetic material to permit reconstruction of parts of the animal's genome.
By Sid Perkins -
Health & MedicineDistracted? Tea might help your focus
An amino acid in tea combines with the brew's caffeine to enliven brain cells that aid concentration.
By Janet Raloff -
Health & MedicineTea compound aids dying brain cells
A constituent of green tea rescues brain cells damaged in a way that mimics the effect of Parkinson's disease.
By Janet Raloff -
Health & MedicineMalaria’s sweet spot
The malaria parasite's reliance on a sugar in the gut of mosquitoes may offer a way to block the disease's transmission.
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AstronomyOut-of-focus find
Blurry images yield estimates of the true width of glowing meteor vapor trails in Earth's upper atmosphere.
By Sid Perkins -
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AnimalsHoneybee mobs smother big hornets
Honeybees gang up on an attacking hornet, killing it by blocking its breathing.
By Susan Milius -
Health & MedicineExhaust fumes might threaten people’s hearts
Nanoparticles in diesel fumes thwart proteins that dissolve blood clots, perhaps increasing the risk of heart attacks.
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PhysicsNot flipping out
A single atom on a surface has favored magnetic orientations that could allow it to encode a data bit.
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TechNanotube Press: Printing technique makes nanotransistors
A new technique for printing networks of carbon nanotubes on a wide range of surfaces is a step toward mass production of nanotubes devices.