News
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EarthDouble-acting bacteria immobilize toxic nanoparticles
Bacteria lurking in the bowels of an abandoned Wisconsin mine might help remove toxic metals from polluted water.
By Sarah Webb -
AnimalsWest Nile virus hits bird populations
West Nile virus has hammered populations of five common North American birds.
By Susan Milius -
Planetary ScienceEris dwarfs Pluto
Ex-planet Pluto suffers another demotion, as observations show that it's much less massive than Eris, another distant denizen of the outer solar system.
By Ron Cowen -
TechA computer in every cell
Artificial genes inserted into cells make RNA molecules that can perform logical computations.
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AnimalsProfiles in Courtship: Flirting male fish show their best sides
Courting male guppies that sport a tad more orange on one side of their bodies than on the other tend to flash that brighter side at females.
By Susan Milius -
PaleontologyJurassic CSI: Fossils indicate central nervous system damage
Fossils found in the head-thrown-back position, the so-called "dead bird" pose, probably died from central nervous system damage.
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ChemistryBeyond Ethanol: Synthetic fuel offers promising alternative
A faster, simpler manufacturing technique could make a synthetic biofuel into an even stronger competitor to ethanol.
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Materials ScienceNeedling Cells: Stem cells could take their cues from silicon nanowires
Scientists have grown mouse stem cells on a bed of silicon nano-needles, hoping that they will be able to guide the cells' development through electrical stimulation.
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PaleontologyWinged dragon
A quarry on the Virginia–North Carolina border has yielded fossils of an unusual gliding reptile that lived in the region about 220 million years ago.
By Sid Perkins -
Health & MedicineWarning Sign: River blindness parasite shows resistance
The parasitic worm that causes river blindness seems to be developing resistance to the only drug that controls it.
By Nathan Seppa -
ComputingMapping a Medusa: The Internet spreads its tentacles
After tracking how digital information weaves around the world, researchers have concluded that, structurally speaking, the Internet looks like a medusa jellyfish.
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Crossing the Line: Technique could treat brain diseases
With the help of a molecule from the rabies virus, scientists have for the first time selectively ferried a drug across the blood-brain barrier to treat a neurological disease in mice.