News
- Astronomy
Heavenly Taffy: Galaxies in collision
Astronomers have discovered a pair of colliding galaxies connected by a bridge of high-speed electrons and elongated magnetic fields.
- Chemistry
Minimotor: Single molecule does some work
A single molecule has performed mechanical work—pulling and releasing a cantilever tip—when exposed to light.
- Physics
Unexpected Boost: A superconductivity killer’s silver lining
Among superconductors—materials able to conduct electricity without resistance—an effect that normally diminishes current-carrying ability surprisingly turns out to sometimes enhance it.
- Animals
Dogged Dieting: Low-cal canines enjoy longer life
The first completed diet-restriction study in a large animal shows that labrador retrievers fed 25 percent less food than those allowed to eat as much as they desired tend to live longer and suffer fewer age-related diseases.
- Earth
September’s Science: Shutdown of airlines aided contrail studies
The shutdown of commerical aviation within the United States for 3 days after Sept. 11, 2001, provided scientists with a unique opportunity to study the influence of high-flying jet aircraft on Earth's climate.
- Health & Medicine
Could nicotine patch fight depression?
Chronic nicotine administration blocked a symptom of depression in an animal model of the disease.
- Health & Medicine
Fetal stress begets adult hypertension
Intense stress during pregnancy may program the baby's development in ways that foster high blood pressure during adulthood.
- Health & Medicine
With this bait, TB won’t play possum
An oral tuberculosis vaccine, designed to help curtail the spread of the disease in wildlife populations, may also find use in people.
- Astronomy
Physics-astronomy merger wins big
A new report recommends fostering the extraordinary collaboration taking place between particle physics and astronomy.
- Physics
Detector spots solar chameleons
A new measurement of the sun's emission of ghostly neutrinos indicates that the prevailing theory of particle physics needs repair.
- Health & Medicine
No benefit from screening
Two large studies confirm that a urine test for a common childhood cancer—neuroblastoma—offers no benefit.
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Boys take a tumble
A long-term study of children from grades 1 through 12 finds a disturbing tendency for boys to report much larger declines in appraisals of their academic abilities than do girls.
