News
- Earth
More Waters Test Positive for Drugs
Traces of drugs, excreted by people and livestock, pollute surface and ground waters in the United States, as had already been confirmed in Europe.
- Health & Medicine
Immune gene linked to prostate cancer
An immune-cell gene plays a role in predisposing men to prostate cancer.
- Astronomy
Found: Gamma-ray background information
Resolving a 30-year-old mystery, astronomers say they have identified the source of the faint, high-energy glow of radiation known as the gamma-ray background.
- Earth
Much that glitters is really old
New isotopic analyses of rock samples from one of the world's richest gold-mining regions suggest that the flecks of gold in those ores are more than 3 billion years old.
- Health & Medicine
New twist on a pet theory
Growing up with cats may reduce a child's risk of developing asthma—unless the child's mother has asthma as well.
- Chemistry
Sensor sniffs out spoiled fish
A new electronic nose detects amine compounds produced when fish decay.
- Chemistry
Air knocks the wind out of nanotubes
Carbon nanotubes are very sensitive to oxygen, an effect that could limit their use in open-air applications.
- Chemistry
Heat spurs growth of tiny carbon trees
Microscopic carbon forests can grow on a graphite surface without the help of catalysts.
- Health & Medicine
Coagulation factor XI boosts clot risk
People who have had a major blood clot in a vein are roughly twice as likely to harbor high concentrations of blood coagulation factor XI as people who haven't.
- Health & Medicine
Myopia link to night lights doubted
Two studies cast doubt on the apparent link between night lights in a baby's nursery and an increased risk of being nearsighted later in childhood.
- Astronomy
X-ray telescope vanishes
Astro-E, a Japanese X-ray observatory, fell back to Earth and burned up just after launch on Feb. 9.
- Planetary Science
Unveiling Mars’ watery secret
A new gravity map of Mars has revealed a network of buried channels that billions of years ago may have been on the surface and helped carry water to fill an ancient ocean.
