News
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Planetary ScienceMartian Radiation: Giving off a faint X-ray glow
Astronomers have for the first time taken an X-ray image of the Red Planet.
By Ron Cowen -
Health & MedicinePredisposed to Trouble: Gene variants implicated in stomach cancer
A person's risk of stomach cancer can depend on the genetics of both the individual and the bacterium Helicobacter pylori.
By Nathan Seppa -
EcosystemsWorm Attacks: Invading earthworms threaten rare U.S. fern
An unusual study of the effects of invading earthworms on North American plants finds that the exotics might be on the way to killing off a rare fern.
By Susan Milius -
Lost That Smoking Feeling: Emotions sputter as cigarette motivator
The first detailed effort to monitor the reactions of cigarette smokers as they carry out their daily activities finds that they feel neither better nor worse than at times when they don't begin smoking.
By Bruce Bower -
EarthOutside-In: Clearing up how cloud droplets freeze
A fresh look at old experimental data suggests that water droplets in clouds freeze from the outside inward rather than from their core outward.
By Sid Perkins -
ComputingLoony Tunes: Bugs blare in software set to music
A novel way of converting computer programs into familiar-sounding music helps programmers locate errors in their code.
By Peter Weiss -
AstronomyCosmic Couple: One galaxy, two gravitational beasts
Astronomers welcomed the discovery of two black holes in one galaxy, which confirms some ideas about how galaxies and black holes merge and evolve.
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EarthRural living may hobble sperm
An epidemiological study provides evidence that sperm concentrations in men residing in rural areas are significantly lower than those of men living in urban centers.
By Janet Raloff -
EarthArsenic Agriculture? Irrigation may worsen Bangladesh’s woes
Researchers investigating an unfolding massive epidemic of arsenic poisoning in Bangladesh say they have evidence that local irrigation practices may be contributing to the problem.
By Ben Harder -
PhysicsCold War Conductor: Ultracold plutonium compound shows no resistance
Researchers studying the crystalline properties of radioactive plutonium have discovered the first plutonium-based superconductor.
By Peter Weiss -
Dog Sense: Domestication gave canines innate insight into human gestures
Dogs may have acquired an innate ability to understand human body language after they were domesticated.
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Three Dog Eves: Canine diaspora from East Asia to Americas
Genetic studies have moved the origins of dog domestication from the Middle East to East Asia and suggest that the first people to venture into the Americas brought their dogs with them.
By Susan Milius