News
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Health & MedicineSingle drug dose may be better against cholera
A single dose of the antibiotic ciprofloxacin cures cholera in children as often as a 12-dose regimen of erythromycin does.
By Nathan Seppa -
Planetary ScienceShoreline for Titan?
New radar images of Saturn's smog-shrouded moon Titan show evidence of a shoreline cutting across the moon's southern hemisphere.
By Ron Cowen -
Planetary Science’10th planet’ has a partner
The so-called 10th planet, an object larger than Pluto that ranks as the most distant body known in the solar system, has a moon.
By Ron Cowen -
PhysicsNanobots walk ‘n’ roll
A molecule that waddles on stubby feet and another that drives on ball-like wheels demonstrate scientists' increasing control over the usually haphazard motion of molecules on surfaces.
By Peter Weiss -
PaleontologySome plesiosaurs went for clams
The fossils of plesiosaurs recently unearthed in Australia suggest that the long-necked, aquatic reptiles had a more varied diet than scientists had previously suspected.
By Sid Perkins -
Materials ScienceBrainy bandages
Researchers have taken a step toward smart bandages that would indicate the presence of an infection in a wound.
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Planetary ScienceMining the moon
New ultraviolet images of the moon help identify the presence of ilmenite, a titanium oxide whose elemental constituents may be a valuable resource for sustaining humans as they explore the lunar surface.
By Ron Cowen -
Materials ScienceSlim and Sturdy Solar Cells: Nanocrystals offer path to electricity
Researchers have crafted an ultrathin solar cell out of inorganic nanocrystals that have several of the advantages of plastic but avoid some of its shortcomings.
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AnimalsGreat Galloping Crinoids: Lilylike sea animal takes a brisk walk
A sea creature called a stalked crinoid may look as motionless as a flower on a stem but a video has revealed it practically jogging across the ocean floor. Video.
By Susan Milius -
Early Stress in Rats Bites Memory Later On: Inadequate care to young animals delivers delayed hit to the brain
The stress of receiving poor maternal care for a short period after birth comes back to haunt rats by stimulating memory losses and related brain disturbances in middle age.
By Bruce Bower -
Health & MedicineWeight-Loss Costs: A critical look at gastric surgery
Obese people who opt for weight-loss surgery incur increased odds of subsequent hospitalization and, in some groups, a substantial risk of death.
By Ben Harder -
Macho Makeover: Fish rapidly ascend social ladder
Some male fish can upgrade their social status, and their appearance, in a matter of minutes.
By Katie Greene