News
- 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.
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Gender Gap: Parasites’ bias for big animals gives female mammals longevity
Parasites infect male mammals more often than females, possibly contributing to the tendency among mammals of males to die earlier than females.
- Animals
Eat the Kids: Are cannibal fish just freshening the O2?
In beaugregory damselfish, males that snack on some of the eggs supposedly in their care may end up benefiting the rest of the egg clutch by making more oxygen available.
- Chemistry
The Dirt on Art: Chemists test laser cleanup of paintings
A new experiment shows that lasers can be a safe tool for cleaning paintings.
- Health & Medicine
Acetaminophen in Action: Effect on an enzyme may stop pain, lower fever
The discovery of an enzyme scientists are calling cyclooxygenase-3, which is disabled by acetaminophen, might explain why this drug can stop pain and fever but not inflammation.
- Astronomy
Hole in the Middle: Are midsize black holes the missing link?
Two teams of astronomers reported that they had confirmed the existence of a new class of black hole.
- Earth
Cancer Causer? Researchers zero in on leukemia risks
Researchers add to mounting evidence that household pesticide exposure may be a significant risk factor for childhood leukemia.
- Paleontology
Veggie Bites: Fossil suggests carnivorous dinosaurs begat vegetarian kin
Chinese rocks have yielded fossil remains of a creature that had rodentlike incisors and a hefty overbite, providing the first distinct dental evidence for plant-eating habits among theropod dinosaurs.
- Anthropology
Court releases ancient skeleton
A judge's decision gives scientists the right to study the 9,000-year-old skeleton dubbed Kennewick Man rather than turn the remains over to a coalition of Native American tribes for reburial.
